What Does the New Toyota Crown Mean for the Next-Generation Lexus GS?

Posted by Kevin on June 28th, 2018

Toyota has just released a next-generation Crown sedan exclusively for the Japanese market, making it the second such model I’ve posted about this week. However, unlike the Toyota Century, this new sedan might actually make an impact on the Lexus lineup.

There has been much discussion on the future of the Lexus GS, and that makes the Toyota Crown very important indeed. The two models have shared platforms and engines since 1993, this new Crown has been extensively redeveloped. It now uses a modified version of the GA-L platform from the new Lexus LS sedan & LC coupe, and the same hybrid powertrain also offered on both Lexus flagships. For all intents and purposes, this Toyota is already a Lexus underneath the sheet metal.

Not to discount the additional development required, but the Crown offers a basic shell that could be used for a next-generation Lexus GS. Exterior and interior styling would have to change, but then that plays exactly into the brand’s strengths. It should be noted that Lexus no longer needs a second mid-size sedan, but the GS could be refactored into a four-door coupe and be elevated to a more prestigious (and lucrative) segment.

It may all be in the timing, as Lexus has brought out three new cars (LC, LS, ES) into a market that prefers SUVs and crossovers. There’s been an understandable shift in priority for the brand, with the focus now shifting to the UX and the fast-tracked production version of the LF-1 Limitless crossover. But the pendulum will swing back at some point, and with the Toyota Crown, Lexus can easily have a new GS just waiting in the wings.

Lexus GS: Fourth Generation
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Comments
Carmaker1
ssun30
The Reiz was not a flop. In fact it was the most popular mid-size sedan in late 2000s because it has the right dimensions for chinese roads. It was the fastest and the most luxury-packed in its league. The power and sportiness are so well received that the E90 BMW 3 always lived in its shadows.

It fell out of favor because of the revised displacement tax introduced in 2012. A V6 family sedan is just too powerful here. Also as China builds more and better roads its size is considered insufficient. Finally FAW has always been upset that GAC (another TMC partner) gets the Camry.

There are rumors that FAW is planning on discontinuing both the Reiz and the Crown. Instead it will get the Avalon that is guaranteed to be a success in China.

The Japanese still cherish the Mark II legacy; it was the symbol of Japan's golden age. They don't want to let it go, but to make the business case work the only option is to make the next Mark X a rebadged IS.
The Mark X is going FWD, moving to utilize TNGA-K. The XV70 Camry debuted that application of TNGA-K. I don't know if Toyota is developing a larger FWD application above TNGA-K, but some tidbits point towards the Mark X no longer being RWD.
Carmaker1
ssun30
The Reiz was not a flop. In fact it was the most popular mid-size sedan in late 2000s because it has the right dimensions for chinese roads. It was the fastest and the most luxury-packed in its league. The power and sportiness are so well received that the E90 BMW 3 always lived in its shadows.

It fell out of favor because of the revised displacement tax introduced in 2012. A V6 family sedan is just too powerful here. Also as China builds more and better roads its size is considered insufficient. Finally FAW has always been upset that GAC (another TMC partner) gets the Camry.

There are rumors that FAW is planning on discontinuing both the Reiz and the Crown. Instead it will get the Avalon that is guaranteed to be a success in China.

The Japanese still cherish the Mark II legacy; it was the symbol of Japan's golden age. They don't want to let it go, but to make the business case work the only option is to make the next Mark X a rebadged IS.
The Mark X is going FWD, moving to utilize TNGA-K. The XV70 Camry debuted that application of TNGA-K. I don't know if Toyota is developing a larger FWD application above TNGA-K, but some tidbits point towards the Mark X no longer being RWD.
Carmaker1
ssun30
The Reiz was not a flop. In fact it was the most popular mid-size sedan in late 2000s because it has the right dimensions for chinese roads. It was the fastest and the most luxury-packed in its league. The power and sportiness are so well received that the E90 BMW 3 always lived in its shadows.

It fell out of favor because of the revised displacement tax introduced in 2012. A V6 family sedan is just too powerful here. Also as China builds more and better roads its size is considered insufficient. Finally FAW has always been upset that GAC (another TMC partner) gets the Camry.

There are rumors that FAW is planning on discontinuing both the Reiz and the Crown. Instead it will get the Avalon that is guaranteed to be a success in China.

The Japanese still cherish the Mark II legacy; it was the symbol of Japan's golden age. They don't want to let it go, but to make the business case work the only option is to make the next Mark X a rebadged IS.
The Mark X is going FWD, moving to utilize TNGA-K. The XV70 Camry debuted that application of TNGA-K. I don't know if Toyota is developing a larger FWD application above TNGA-K, but some tidbits point towards the Mark X no longer being RWD.
Carmaker1
ssun30
The Reiz was not a flop. In fact it was the most popular mid-size sedan in late 2000s because it has the right dimensions for chinese roads. It was the fastest and the most luxury-packed in its league. The power and sportiness are so well received that the E90 BMW 3 always lived in its shadows.

It fell out of favor because of the revised displacement tax introduced in 2012. A V6 family sedan is just too powerful here. Also as China builds more and better roads its size is considered insufficient. Finally FAW has always been upset that GAC (another TMC partner) gets the Camry.

There are rumors that FAW is planning on discontinuing both the Reiz and the Crown. Instead it will get the Avalon that is guaranteed to be a success in China.

The Japanese still cherish the Mark II legacy; it was the symbol of Japan's golden age. They don't want to let it go, but to make the business case work the only option is to make the next Mark X a rebadged IS.
The Mark X is going FWD, moving to utilize TNGA-K. The XV70 Camry debuted that application of TNGA-K. I don't know if Toyota is developing a larger FWD application above TNGA-K, but some tidbits point towards the Mark X no longer being RWD.
Carmaker1
Joaquin Ruhi
They're currently all closer together in size than you'd think. The 3rd-gen Lexus IS sits on a 2800 mm (110.2") wheelbase, while the current Mark X and 4th-gen Lexus GS share a 2850 mm (112.2") wheelbase, and the outgoing Crown Royal/Athlete use a slightly longer 2860 mm (112.6") wheelbase.

In overall length, the "stepladder' is as follows:
3IS: 4,665 mm (183.7 in)
Mark X: 4,750 mm (187.0 in)
4GS: 4,850 mm (190.9 in)
Crown14: 4,885 mm (192 in)

In width (excluding outside mirrors), Mark X and Crown are a bit narrower, a natural given their JDM/Asia orientation. Here are the numbers:
Mark X: 1,795 mm (70.7 in)
Crown14: 1,800 mm (71 in)
3IS: 1,810 mm (71.3 in)
4GS: 1,840 mm (72.4 in)

Enough of the present, though. Let's shift towards the future. The transitions from N/New N to TNGA-L platforms imply longer wheelbases (given the kinda/sorta front-mid-engine placement) combined with less overhangs to minimize increases in overall length. Based on the Crown Concept dimensions, the Crown14 (N platform) to Crown15 (TNGA-L) transition implies a 2.4" longer wheelbase and a 1.3" increase in overall length.

Stepping aside for a bit, let's review what's happening with the N-to-TNGA-L transitions. Lexus LS and Toyota Crown are the first ones we know about.
(Crown Athlete and Royal, like Lexus ES, seem to be on an inviolable, clockwork-like 4-to-6-year cycle). Lexus IS is a given, it's safe to say. Lexus' 5GS and Toyota's Mark X, however, seem to be in a state of flux and indecision where Toyota's not sure how to proceed. With all due respect, Mark X is not so much a smaller GS/Crown as it is a sportier, rebodied Crown alternative with reduced overhangs that sells in a different JDM Toyota dealer network from Crown. The current-generation Mark X has been around since October 2009 (2010 model year), with facelifts for the 2013 and 2017 model years. Also notable is that the Chinese market version of Mark X, the Toyota Reiz was a flop whose production ended last week, per Wikipedia.

It's probable, as ssun30 suggests, that Lexus' 4IS will see yet another growth spurt vs its predecessor. Toyota, as stated earlier, is probably struggling with a decision on what to do with the next generations of Toyota Mark X and Lexus GS, large sedans in a crossover and SUV-mad world. Assuming they both survive, ssun30 might be on to something in suggesting that Mark X could align itself closer to IS and morph into something clearly smaller than Crown and Lexus GS. In that scenario, Toyota/Lexus TNGA-L sedan pairings would come in 3 sizes as follows:

Small: 3rd-gen Toyota Mark X / 4th-gen Lexus IS
Medium: 15th-gen Toyota Crown Athlete and Royal / 5th-gen Lexus GS
Large: 7th-gen Toyota Crown Majesta / 5th-gen Lexus LS
Well, the Mark X is reportedly going FWD circa 2020.
Carmaker1
Joaquin Ruhi
They're currently all closer together in size than you'd think. The 3rd-gen Lexus IS sits on a 2800 mm (110.2") wheelbase, while the current Mark X and 4th-gen Lexus GS share a 2850 mm (112.2") wheelbase, and the outgoing Crown Royal/Athlete use a slightly longer 2860 mm (112.6") wheelbase.

In overall length, the "stepladder' is as follows:
3IS: 4,665 mm (183.7 in)
Mark X: 4,750 mm (187.0 in)
4GS: 4,850 mm (190.9 in)
Crown14: 4,885 mm (192 in)

In width (excluding outside mirrors), Mark X and Crown are a bit narrower, a natural given their JDM/Asia orientation. Here are the numbers:
Mark X: 1,795 mm (70.7 in)
Crown14: 1,800 mm (71 in)
3IS: 1,810 mm (71.3 in)
4GS: 1,840 mm (72.4 in)

Enough of the present, though. Let's shift towards the future. The transitions from N/New N to TNGA-L platforms imply longer wheelbases (given the kinda/sorta front-mid-engine placement) combined with less overhangs to minimize increases in overall length. Based on the Crown Concept dimensions, the Crown14 (N platform) to Crown15 (TNGA-L) transition implies a 2.4" longer wheelbase and a 1.3" increase in overall length.

Stepping aside for a bit, let's review what's happening with the N-to-TNGA-L transitions. Lexus LS and Toyota Crown are the first ones we know about.
(Crown Athlete and Royal, like Lexus ES, seem to be on an inviolable, clockwork-like 4-to-6-year cycle). Lexus IS is a given, it's safe to say. Lexus' 5GS and Toyota's Mark X, however, seem to be in a state of flux and indecision where Toyota's not sure how to proceed. With all due respect, Mark X is not so much a smaller GS/Crown as it is a sportier, rebodied Crown alternative with reduced overhangs that sells in a different JDM Toyota dealer network from Crown. The current-generation Mark X has been around since October 2009 (2010 model year), with facelifts for the 2013 and 2017 model years. Also notable is that the Chinese market version of Mark X, the Toyota Reiz was a flop whose production ended last week, per Wikipedia.

It's probable, as ssun30 suggests, that Lexus' 4IS will see yet another growth spurt vs its predecessor. Toyota, as stated earlier, is probably struggling with a decision on what to do with the next generations of Toyota Mark X and Lexus GS, large sedans in a crossover and SUV-mad world. Assuming they both survive, ssun30 might be on to something in suggesting that Mark X could align itself closer to IS and morph into something clearly smaller than Crown and Lexus GS. In that scenario, Toyota/Lexus TNGA-L sedan pairings would come in 3 sizes as follows:

Small: 3rd-gen Toyota Mark X / 4th-gen Lexus IS
Medium: 15th-gen Toyota Crown Athlete and Royal / 5th-gen Lexus GS
Large: 7th-gen Toyota Crown Majesta / 5th-gen Lexus LS
Well, the Mark X is reportedly going FWD circa 2020.
Carmaker1
Joaquin Ruhi
They're currently all closer together in size than you'd think. The 3rd-gen Lexus IS sits on a 2800 mm (110.2") wheelbase, while the current Mark X and 4th-gen Lexus GS share a 2850 mm (112.2") wheelbase, and the outgoing Crown Royal/Athlete use a slightly longer 2860 mm (112.6") wheelbase.

In overall length, the "stepladder' is as follows:
3IS: 4,665 mm (183.7 in)
Mark X: 4,750 mm (187.0 in)
4GS: 4,850 mm (190.9 in)
Crown14: 4,885 mm (192 in)

In width (excluding outside mirrors), Mark X and Crown are a bit narrower, a natural given their JDM/Asia orientation. Here are the numbers:
Mark X: 1,795 mm (70.7 in)
Crown14: 1,800 mm (71 in)
3IS: 1,810 mm (71.3 in)
4GS: 1,840 mm (72.4 in)

Enough of the present, though. Let's shift towards the future. The transitions from N/New N to TNGA-L platforms imply longer wheelbases (given the kinda/sorta front-mid-engine placement) combined with less overhangs to minimize increases in overall length. Based on the Crown Concept dimensions, the Crown14 (N platform) to Crown15 (TNGA-L) transition implies a 2.4" longer wheelbase and a 1.3" increase in overall length.

Stepping aside for a bit, let's review what's happening with the N-to-TNGA-L transitions. Lexus LS and Toyota Crown are the first ones we know about.
(Crown Athlete and Royal, like Lexus ES, seem to be on an inviolable, clockwork-like 4-to-6-year cycle). Lexus IS is a given, it's safe to say. Lexus' 5GS and Toyota's Mark X, however, seem to be in a state of flux and indecision where Toyota's not sure how to proceed. With all due respect, Mark X is not so much a smaller GS/Crown as it is a sportier, rebodied Crown alternative with reduced overhangs that sells in a different JDM Toyota dealer network from Crown. The current-generation Mark X has been around since October 2009 (2010 model year), with facelifts for the 2013 and 2017 model years. Also notable is that the Chinese market version of Mark X, the Toyota Reiz was a flop whose production ended last week, per Wikipedia.

It's probable, as ssun30 suggests, that Lexus' 4IS will see yet another growth spurt vs its predecessor. Toyota, as stated earlier, is probably struggling with a decision on what to do with the next generations of Toyota Mark X and Lexus GS, large sedans in a crossover and SUV-mad world. Assuming they both survive, ssun30 might be on to something in suggesting that Mark X could align itself closer to IS and morph into something clearly smaller than Crown and Lexus GS. In that scenario, Toyota/Lexus TNGA-L sedan pairings would come in 3 sizes as follows:

Small: 3rd-gen Toyota Mark X / 4th-gen Lexus IS
Medium: 15th-gen Toyota Crown Athlete and Royal / 5th-gen Lexus GS
Large: 7th-gen Toyota Crown Majesta / 5th-gen Lexus LS
Well, the Mark X is reportedly going FWD circa 2020.
Carmaker1
Joaquin Ruhi
They're currently all closer together in size than you'd think. The 3rd-gen Lexus IS sits on a 2800 mm (110.2") wheelbase, while the current Mark X and 4th-gen Lexus GS share a 2850 mm (112.2") wheelbase, and the outgoing Crown Royal/Athlete use a slightly longer 2860 mm (112.6") wheelbase.

In overall length, the "stepladder' is as follows:
3IS: 4,665 mm (183.7 in)
Mark X: 4,750 mm (187.0 in)
4GS: 4,850 mm (190.9 in)
Crown14: 4,885 mm (192 in)

In width (excluding outside mirrors), Mark X and Crown are a bit narrower, a natural given their JDM/Asia orientation. Here are the numbers:
Mark X: 1,795 mm (70.7 in)
Crown14: 1,800 mm (71 in)
3IS: 1,810 mm (71.3 in)
4GS: 1,840 mm (72.4 in)

Enough of the present, though. Let's shift towards the future. The transitions from N/New N to TNGA-L platforms imply longer wheelbases (given the kinda/sorta front-mid-engine placement) combined with less overhangs to minimize increases in overall length. Based on the Crown Concept dimensions, the Crown14 (N platform) to Crown15 (TNGA-L) transition implies a 2.4" longer wheelbase and a 1.3" increase in overall length.

Stepping aside for a bit, let's review what's happening with the N-to-TNGA-L transitions. Lexus LS and Toyota Crown are the first ones we know about.
(Crown Athlete and Royal, like Lexus ES, seem to be on an inviolable, clockwork-like 4-to-6-year cycle). Lexus IS is a given, it's safe to say. Lexus' 5GS and Toyota's Mark X, however, seem to be in a state of flux and indecision where Toyota's not sure how to proceed. With all due respect, Mark X is not so much a smaller GS/Crown as it is a sportier, rebodied Crown alternative with reduced overhangs that sells in a different JDM Toyota dealer network from Crown. The current-generation Mark X has been around since October 2009 (2010 model year), with facelifts for the 2013 and 2017 model years. Also notable is that the Chinese market version of Mark X, the Toyota Reiz was a flop whose production ended last week, per Wikipedia.

It's probable, as ssun30 suggests, that Lexus' 4IS will see yet another growth spurt vs its predecessor. Toyota, as stated earlier, is probably struggling with a decision on what to do with the next generations of Toyota Mark X and Lexus GS, large sedans in a crossover and SUV-mad world. Assuming they both survive, ssun30 might be on to something in suggesting that Mark X could align itself closer to IS and morph into something clearly smaller than Crown and Lexus GS. In that scenario, Toyota/Lexus TNGA-L sedan pairings would come in 3 sizes as follows:

Small: 3rd-gen Toyota Mark X / 4th-gen Lexus IS
Medium: 15th-gen Toyota Crown Athlete and Royal / 5th-gen Lexus GS
Large: 7th-gen Toyota Crown Majesta / 5th-gen Lexus LS
Well, the Mark X is reportedly going FWD circa 2020.
Carmaker1
Joaquin Ruhi
They're currently all closer together in size than you'd think. The 3rd-gen Lexus IS sits on a 2800 mm (110.2") wheelbase, while the current Mark X and 4th-gen Lexus GS share a 2850 mm (112.2") wheelbase, and the outgoing Crown Royal/Athlete use a slightly longer 2860 mm (112.6") wheelbase.

In overall length, the "stepladder' is as follows:
3IS: 4,665 mm (183.7 in)
Mark X: 4,750 mm (187.0 in)
4GS: 4,850 mm (190.9 in)
Crown14: 4,885 mm (192 in)

In width (excluding outside mirrors), Mark X and Crown are a bit narrower, a natural given their JDM/Asia orientation. Here are the numbers:
Mark X: 1,795 mm (70.7 in)
Crown14: 1,800 mm (71 in)
3IS: 1,810 mm (71.3 in)
4GS: 1,840 mm (72.4 in)

Enough of the present, though. Let's shift towards the future. The transitions from N/New N to TNGA-L platforms imply longer wheelbases (given the kinda/sorta front-mid-engine placement) combined with less overhangs to minimize increases in overall length. Based on the Crown Concept dimensions, the Crown14 (N platform) to Crown15 (TNGA-L) transition implies a 2.4" longer wheelbase and a 1.3" increase in overall length.

Stepping aside for a bit, let's review what's happening with the N-to-TNGA-L transitions. Lexus LS and Toyota Crown are the first ones we know about.
(Crown Athlete and Royal, like Lexus ES, seem to be on an inviolable, clockwork-like 4-to-6-year cycle). Lexus IS is a given, it's safe to say. Lexus' 5GS and Toyota's Mark X, however, seem to be in a state of flux and indecision where Toyota's not sure how to proceed. With all due respect, Mark X is not so much a smaller GS/Crown as it is a sportier, rebodied Crown alternative with reduced overhangs that sells in a different JDM Toyota dealer network from Crown. The current-generation Mark X has been around since October 2009 (2010 model year), with facelifts for the 2013 and 2017 model years. Also notable is that the Chinese market version of Mark X, the Toyota Reiz was a flop whose production ended last week, per Wikipedia.

It's probable, as ssun30 suggests, that Lexus' 4IS will see yet another growth spurt vs its predecessor. Toyota, as stated earlier, is probably struggling with a decision on what to do with the next generations of Toyota Mark X and Lexus GS, large sedans in a crossover and SUV-mad world. Assuming they both survive, ssun30 might be on to something in suggesting that Mark X could align itself closer to IS and morph into something clearly smaller than Crown and Lexus GS. In that scenario, Toyota/Lexus TNGA-L sedan pairings would come in 3 sizes as follows:

Small: 3rd-gen Toyota Mark X / 4th-gen Lexus IS
Medium: 15th-gen Toyota Crown Athlete and Royal / 5th-gen Lexus GS
Large: 7th-gen Toyota Crown Majesta / 5th-gen Lexus LS
Well, the Mark X is reportedly going FWD circa 2020.
Carmaker1
Joaquin Ruhi
They're currently all closer together in size than you'd think. The 3rd-gen Lexus IS sits on a 2800 mm (110.2") wheelbase, while the current Mark X and 4th-gen Lexus GS share a 2850 mm (112.2") wheelbase, and the outgoing Crown Royal/Athlete use a slightly longer 2860 mm (112.6") wheelbase.

In overall length, the "stepladder' is as follows:
3IS: 4,665 mm (183.7 in)
Mark X: 4,750 mm (187.0 in)
4GS: 4,850 mm (190.9 in)
Crown14: 4,885 mm (192 in)

In width (excluding outside mirrors), Mark X and Crown are a bit narrower, a natural given their JDM/Asia orientation. Here are the numbers:
Mark X: 1,795 mm (70.7 in)
Crown14: 1,800 mm (71 in)
3IS: 1,810 mm (71.3 in)
4GS: 1,840 mm (72.4 in)

Enough of the present, though. Let's shift towards the future. The transitions from N/New N to TNGA-L platforms imply longer wheelbases (given the kinda/sorta front-mid-engine placement) combined with less overhangs to minimize increases in overall length. Based on the Crown Concept dimensions, the Crown14 (N platform) to Crown15 (TNGA-L) transition implies a 2.4" longer wheelbase and a 1.3" increase in overall length.

Stepping aside for a bit, let's review what's happening with the N-to-TNGA-L transitions. Lexus LS and Toyota Crown are the first ones we know about.
(Crown Athlete and Royal, like Lexus ES, seem to be on an inviolable, clockwork-like 4-to-6-year cycle). Lexus IS is a given, it's safe to say. Lexus' 5GS and Toyota's Mark X, however, seem to be in a state of flux and indecision where Toyota's not sure how to proceed. With all due respect, Mark X is not so much a smaller GS/Crown as it is a sportier, rebodied Crown alternative with reduced overhangs that sells in a different JDM Toyota dealer network from Crown. The current-generation Mark X has been around since October 2009 (2010 model year), with facelifts for the 2013 and 2017 model years. Also notable is that the Chinese market version of Mark X, the Toyota Reiz was a flop whose production ended last week, per Wikipedia.

It's probable, as ssun30 suggests, that Lexus' 4IS will see yet another growth spurt vs its predecessor. Toyota, as stated earlier, is probably struggling with a decision on what to do with the next generations of Toyota Mark X and Lexus GS, large sedans in a crossover and SUV-mad world. Assuming they both survive, ssun30 might be on to something in suggesting that Mark X could align itself closer to IS and morph into something clearly smaller than Crown and Lexus GS. In that scenario, Toyota/Lexus TNGA-L sedan pairings would come in 3 sizes as follows:

Small: 3rd-gen Toyota Mark X / 4th-gen Lexus IS
Medium: 15th-gen Toyota Crown Athlete and Royal / 5th-gen Lexus GS
Large: 7th-gen Toyota Crown Majesta / 5th-gen Lexus LS
Well, the Mark X is reportedly going FWD circa 2020.
Carmaker1
Joaquin Ruhi
They're currently all closer together in size than you'd think. The 3rd-gen Lexus IS sits on a 2800 mm (110.2") wheelbase, while the current Mark X and 4th-gen Lexus GS share a 2850 mm (112.2") wheelbase, and the outgoing Crown Royal/Athlete use a slightly longer 2860 mm (112.6") wheelbase.

In overall length, the "stepladder' is as follows:
3IS: 4,665 mm (183.7 in)
Mark X: 4,750 mm (187.0 in)
4GS: 4,850 mm (190.9 in)
Crown14: 4,885 mm (192 in)

In width (excluding outside mirrors), Mark X and Crown are a bit narrower, a natural given their JDM/Asia orientation. Here are the numbers:
Mark X: 1,795 mm (70.7 in)
Crown14: 1,800 mm (71 in)
3IS: 1,810 mm (71.3 in)
4GS: 1,840 mm (72.4 in)

Enough of the present, though. Let's shift towards the future. The transitions from N/New N to TNGA-L platforms imply longer wheelbases (given the kinda/sorta front-mid-engine placement) combined with less overhangs to minimize increases in overall length. Based on the Crown Concept dimensions, the Crown14 (N platform) to Crown15 (TNGA-L) transition implies a 2.4" longer wheelbase and a 1.3" increase in overall length.

Stepping aside for a bit, let's review what's happening with the N-to-TNGA-L transitions. Lexus LS and Toyota Crown are the first ones we know about.
(Crown Athlete and Royal, like Lexus ES, seem to be on an inviolable, clockwork-like 4-to-6-year cycle). Lexus IS is a given, it's safe to say. Lexus' 5GS and Toyota's Mark X, however, seem to be in a state of flux and indecision where Toyota's not sure how to proceed. With all due respect, Mark X is not so much a smaller GS/Crown as it is a sportier, rebodied Crown alternative with reduced overhangs that sells in a different JDM Toyota dealer network from Crown. The current-generation Mark X has been around since October 2009 (2010 model year), with facelifts for the 2013 and 2017 model years. Also notable is that the Chinese market version of Mark X, the Toyota Reiz was a flop whose production ended last week, per Wikipedia.

It's probable, as ssun30 suggests, that Lexus' 4IS will see yet another growth spurt vs its predecessor. Toyota, as stated earlier, is probably struggling with a decision on what to do with the next generations of Toyota Mark X and Lexus GS, large sedans in a crossover and SUV-mad world. Assuming they both survive, ssun30 might be on to something in suggesting that Mark X could align itself closer to IS and morph into something clearly smaller than Crown and Lexus GS. In that scenario, Toyota/Lexus TNGA-L sedan pairings would come in 3 sizes as follows:

Small: 3rd-gen Toyota Mark X / 4th-gen Lexus IS
Medium: 15th-gen Toyota Crown Athlete and Royal / 5th-gen Lexus GS
Large: 7th-gen Toyota Crown Majesta / 5th-gen Lexus LS
Well, the Mark X is reportedly going FWD circa 2020.
Carmaker1
Joaquin Ruhi
They're currently all closer together in size than you'd think. The 3rd-gen Lexus IS sits on a 2800 mm (110.2") wheelbase, while the current Mark X and 4th-gen Lexus GS share a 2850 mm (112.2") wheelbase, and the outgoing Crown Royal/Athlete use a slightly longer 2860 mm (112.6") wheelbase.

In overall length, the "stepladder' is as follows:
3IS: 4,665 mm (183.7 in)
Mark X: 4,750 mm (187.0 in)
4GS: 4,850 mm (190.9 in)
Crown14: 4,885 mm (192 in)

In width (excluding outside mirrors), Mark X and Crown are a bit narrower, a natural given their JDM/Asia orientation. Here are the numbers:
Mark X: 1,795 mm (70.7 in)
Crown14: 1,800 mm (71 in)
3IS: 1,810 mm (71.3 in)
4GS: 1,840 mm (72.4 in)

Enough of the present, though. Let's shift towards the future. The transitions from N/New N to TNGA-L platforms imply longer wheelbases (given the kinda/sorta front-mid-engine placement) combined with less overhangs to minimize increases in overall length. Based on the Crown Concept dimensions, the Crown14 (N platform) to Crown15 (TNGA-L) transition implies a 2.4" longer wheelbase and a 1.3" increase in overall length.

Stepping aside for a bit, let's review what's happening with the N-to-TNGA-L transitions. Lexus LS and Toyota Crown are the first ones we know about.
(Crown Athlete and Royal, like Lexus ES, seem to be on an inviolable, clockwork-like 4-to-6-year cycle). Lexus IS is a given, it's safe to say. Lexus' 5GS and Toyota's Mark X, however, seem to be in a state of flux and indecision where Toyota's not sure how to proceed. With all due respect, Mark X is not so much a smaller GS/Crown as it is a sportier, rebodied Crown alternative with reduced overhangs that sells in a different JDM Toyota dealer network from Crown. The current-generation Mark X has been around since October 2009 (2010 model year), with facelifts for the 2013 and 2017 model years. Also notable is that the Chinese market version of Mark X, the Toyota Reiz was a flop whose production ended last week, per Wikipedia.

It's probable, as ssun30 suggests, that Lexus' 4IS will see yet another growth spurt vs its predecessor. Toyota, as stated earlier, is probably struggling with a decision on what to do with the next generations of Toyota Mark X and Lexus GS, large sedans in a crossover and SUV-mad world. Assuming they both survive, ssun30 might be on to something in suggesting that Mark X could align itself closer to IS and morph into something clearly smaller than Crown and Lexus GS. In that scenario, Toyota/Lexus TNGA-L sedan pairings would come in 3 sizes as follows:

Small: 3rd-gen Toyota Mark X / 4th-gen Lexus IS
Medium: 15th-gen Toyota Crown Athlete and Royal / 5th-gen Lexus GS
Large: 7th-gen Toyota Crown Majesta / 5th-gen Lexus LS
Well, the Mark X is reportedly going FWD circa 2020.
Carmaker1
Joaquin Ruhi
They're currently all closer together in size than you'd think. The 3rd-gen Lexus IS sits on a 2800 mm (110.2") wheelbase, while the current Mark X and 4th-gen Lexus GS share a 2850 mm (112.2") wheelbase, and the outgoing Crown Royal/Athlete use a slightly longer 2860 mm (112.6") wheelbase.

In overall length, the "stepladder' is as follows:
3IS: 4,665 mm (183.7 in)
Mark X: 4,750 mm (187.0 in)
4GS: 4,850 mm (190.9 in)
Crown14: 4,885 mm (192 in)

In width (excluding outside mirrors), Mark X and Crown are a bit narrower, a natural given their JDM/Asia orientation. Here are the numbers:
Mark X: 1,795 mm (70.7 in)
Crown14: 1,800 mm (71 in)
3IS: 1,810 mm (71.3 in)
4GS: 1,840 mm (72.4 in)

Enough of the present, though. Let's shift towards the future. The transitions from N/New N to TNGA-L platforms imply longer wheelbases (given the kinda/sorta front-mid-engine placement) combined with less overhangs to minimize increases in overall length. Based on the Crown Concept dimensions, the Crown14 (N platform) to Crown15 (TNGA-L) transition implies a 2.4" longer wheelbase and a 1.3" increase in overall length.

Stepping aside for a bit, let's review what's happening with the N-to-TNGA-L transitions. Lexus LS and Toyota Crown are the first ones we know about.
(Crown Athlete and Royal, like Lexus ES, seem to be on an inviolable, clockwork-like 4-to-6-year cycle). Lexus IS is a given, it's safe to say. Lexus' 5GS and Toyota's Mark X, however, seem to be in a state of flux and indecision where Toyota's not sure how to proceed. With all due respect, Mark X is not so much a smaller GS/Crown as it is a sportier, rebodied Crown alternative with reduced overhangs that sells in a different JDM Toyota dealer network from Crown. The current-generation Mark X has been around since October 2009 (2010 model year), with facelifts for the 2013 and 2017 model years. Also notable is that the Chinese market version of Mark X, the Toyota Reiz was a flop whose production ended last week, per Wikipedia.

It's probable, as ssun30 suggests, that Lexus' 4IS will see yet another growth spurt vs its predecessor. Toyota, as stated earlier, is probably struggling with a decision on what to do with the next generations of Toyota Mark X and Lexus GS, large sedans in a crossover and SUV-mad world. Assuming they both survive, ssun30 might be on to something in suggesting that Mark X could align itself closer to IS and morph into something clearly smaller than Crown and Lexus GS. In that scenario, Toyota/Lexus TNGA-L sedan pairings would come in 3 sizes as follows:

Small: 3rd-gen Toyota Mark X / 4th-gen Lexus IS
Medium: 15th-gen Toyota Crown Athlete and Royal / 5th-gen Lexus GS
Large: 7th-gen Toyota Crown Majesta / 5th-gen Lexus LS
Well, the Mark X is reportedly going FWD circa 2020.
Carmaker1
Joaquin Ruhi
They're currently all closer together in size than you'd think. The 3rd-gen Lexus IS sits on a 2800 mm (110.2") wheelbase, while the current Mark X and 4th-gen Lexus GS share a 2850 mm (112.2") wheelbase, and the outgoing Crown Royal/Athlete use a slightly longer 2860 mm (112.6") wheelbase.

In overall length, the "stepladder' is as follows:
3IS: 4,665 mm (183.7 in)
Mark X: 4,750 mm (187.0 in)
4GS: 4,850 mm (190.9 in)
Crown14: 4,885 mm (192 in)

In width (excluding outside mirrors), Mark X and Crown are a bit narrower, a natural given their JDM/Asia orientation. Here are the numbers:
Mark X: 1,795 mm (70.7 in)
Crown14: 1,800 mm (71 in)
3IS: 1,810 mm (71.3 in)
4GS: 1,840 mm (72.4 in)

Enough of the present, though. Let's shift towards the future. The transitions from N/New N to TNGA-L platforms imply longer wheelbases (given the kinda/sorta front-mid-engine placement) combined with less overhangs to minimize increases in overall length. Based on the Crown Concept dimensions, the Crown14 (N platform) to Crown15 (TNGA-L) transition implies a 2.4" longer wheelbase and a 1.3" increase in overall length.

Stepping aside for a bit, let's review what's happening with the N-to-TNGA-L transitions. Lexus LS and Toyota Crown are the first ones we know about.
(Crown Athlete and Royal, like Lexus ES, seem to be on an inviolable, clockwork-like 4-to-6-year cycle). Lexus IS is a given, it's safe to say. Lexus' 5GS and Toyota's Mark X, however, seem to be in a state of flux and indecision where Toyota's not sure how to proceed. With all due respect, Mark X is not so much a smaller GS/Crown as it is a sportier, rebodied Crown alternative with reduced overhangs that sells in a different JDM Toyota dealer network from Crown. The current-generation Mark X has been around since October 2009 (2010 model year), with facelifts for the 2013 and 2017 model years. Also notable is that the Chinese market version of Mark X, the Toyota Reiz was a flop whose production ended last week, per Wikipedia.

It's probable, as ssun30 suggests, that Lexus' 4IS will see yet another growth spurt vs its predecessor. Toyota, as stated earlier, is probably struggling with a decision on what to do with the next generations of Toyota Mark X and Lexus GS, large sedans in a crossover and SUV-mad world. Assuming they both survive, ssun30 might be on to something in suggesting that Mark X could align itself closer to IS and morph into something clearly smaller than Crown and Lexus GS. In that scenario, Toyota/Lexus TNGA-L sedan pairings would come in 3 sizes as follows:

Small: 3rd-gen Toyota Mark X / 4th-gen Lexus IS
Medium: 15th-gen Toyota Crown Athlete and Royal / 5th-gen Lexus GS
Large: 7th-gen Toyota Crown Majesta / 5th-gen Lexus LS
Well, the Mark X is reportedly going FWD circa 2020.
Carmaker1
Joaquin Ruhi
They're currently all closer together in size than you'd think. The 3rd-gen Lexus IS sits on a 2800 mm (110.2") wheelbase, while the current Mark X and 4th-gen Lexus GS share a 2850 mm (112.2") wheelbase, and the outgoing Crown Royal/Athlete use a slightly longer 2860 mm (112.6") wheelbase.

In overall length, the "stepladder' is as follows:
3IS: 4,665 mm (183.7 in)
Mark X: 4,750 mm (187.0 in)
4GS: 4,850 mm (190.9 in)
Crown14: 4,885 mm (192 in)

In width (excluding outside mirrors), Mark X and Crown are a bit narrower, a natural given their JDM/Asia orientation. Here are the numbers:
Mark X: 1,795 mm (70.7 in)
Crown14: 1,800 mm (71 in)
3IS: 1,810 mm (71.3 in)
4GS: 1,840 mm (72.4 in)

Enough of the present, though. Let's shift towards the future. The transitions from N/New N to TNGA-L platforms imply longer wheelbases (given the kinda/sorta front-mid-engine placement) combined with less overhangs to minimize increases in overall length. Based on the Crown Concept dimensions, the Crown14 (N platform) to Crown15 (TNGA-L) transition implies a 2.4" longer wheelbase and a 1.3" increase in overall length.

Stepping aside for a bit, let's review what's happening with the N-to-TNGA-L transitions. Lexus LS and Toyota Crown are the first ones we know about.
(Crown Athlete and Royal, like Lexus ES, seem to be on an inviolable, clockwork-like 4-to-6-year cycle). Lexus IS is a given, it's safe to say. Lexus' 5GS and Toyota's Mark X, however, seem to be in a state of flux and indecision where Toyota's not sure how to proceed. With all due respect, Mark X is not so much a smaller GS/Crown as it is a sportier, rebodied Crown alternative with reduced overhangs that sells in a different JDM Toyota dealer network from Crown. The current-generation Mark X has been around since October 2009 (2010 model year), with facelifts for the 2013 and 2017 model years. Also notable is that the Chinese market version of Mark X, the Toyota Reiz was a flop whose production ended last week, per Wikipedia.

It's probable, as ssun30 suggests, that Lexus' 4IS will see yet another growth spurt vs its predecessor. Toyota, as stated earlier, is probably struggling with a decision on what to do with the next generations of Toyota Mark X and Lexus GS, large sedans in a crossover and SUV-mad world. Assuming they both survive, ssun30 might be on to something in suggesting that Mark X could align itself closer to IS and morph into something clearly smaller than Crown and Lexus GS. In that scenario, Toyota/Lexus TNGA-L sedan pairings would come in 3 sizes as follows:

Small: 3rd-gen Toyota Mark X / 4th-gen Lexus IS
Medium: 15th-gen Toyota Crown Athlete and Royal / 5th-gen Lexus GS
Large: 7th-gen Toyota Crown Majesta / 5th-gen Lexus LS
Well, the Mark X is reportedly going FWD circa 2020.
Carmaker1
Joaquin Ruhi
They're currently all closer together in size than you'd think. The 3rd-gen Lexus IS sits on a 2800 mm (110.2") wheelbase, while the current Mark X and 4th-gen Lexus GS share a 2850 mm (112.2") wheelbase, and the outgoing Crown Royal/Athlete use a slightly longer 2860 mm (112.6") wheelbase.

In overall length, the "stepladder' is as follows:
3IS: 4,665 mm (183.7 in)
Mark X: 4,750 mm (187.0 in)
4GS: 4,850 mm (190.9 in)
Crown14: 4,885 mm (192 in)

In width (excluding outside mirrors), Mark X and Crown are a bit narrower, a natural given their JDM/Asia orientation. Here are the numbers:
Mark X: 1,795 mm (70.7 in)
Crown14: 1,800 mm (71 in)
3IS: 1,810 mm (71.3 in)
4GS: 1,840 mm (72.4 in)

Enough of the present, though. Let's shift towards the future. The transitions from N/New N to TNGA-L platforms imply longer wheelbases (given the kinda/sorta front-mid-engine placement) combined with less overhangs to minimize increases in overall length. Based on the Crown Concept dimensions, the Crown14 (N platform) to Crown15 (TNGA-L) transition implies a 2.4" longer wheelbase and a 1.3" increase in overall length.

Stepping aside for a bit, let's review what's happening with the N-to-TNGA-L transitions. Lexus LS and Toyota Crown are the first ones we know about.
(Crown Athlete and Royal, like Lexus ES, seem to be on an inviolable, clockwork-like 4-to-6-year cycle). Lexus IS is a given, it's safe to say. Lexus' 5GS and Toyota's Mark X, however, seem to be in a state of flux and indecision where Toyota's not sure how to proceed. With all due respect, Mark X is not so much a smaller GS/Crown as it is a sportier, rebodied Crown alternative with reduced overhangs that sells in a different JDM Toyota dealer network from Crown. The current-generation Mark X has been around since October 2009 (2010 model year), with facelifts for the 2013 and 2017 model years. Also notable is that the Chinese market version of Mark X, the Toyota Reiz was a flop whose production ended last week, per Wikipedia.

It's probable, as ssun30 suggests, that Lexus' 4IS will see yet another growth spurt vs its predecessor. Toyota, as stated earlier, is probably struggling with a decision on what to do with the next generations of Toyota Mark X and Lexus GS, large sedans in a crossover and SUV-mad world. Assuming they both survive, ssun30 might be on to something in suggesting that Mark X could align itself closer to IS and morph into something clearly smaller than Crown and Lexus GS. In that scenario, Toyota/Lexus TNGA-L sedan pairings would come in 3 sizes as follows:

Small: 3rd-gen Toyota Mark X / 4th-gen Lexus IS
Medium: 15th-gen Toyota Crown Athlete and Royal / 5th-gen Lexus GS
Large: 7th-gen Toyota Crown Majesta / 5th-gen Lexus LS
Well, the Mark X is reportedly going FWD circa 2020.
Carmaker1
Joaquin Ruhi
They're currently all closer together in size than you'd think. The 3rd-gen Lexus IS sits on a 2800 mm (110.2") wheelbase, while the current Mark X and 4th-gen Lexus GS share a 2850 mm (112.2") wheelbase, and the outgoing Crown Royal/Athlete use a slightly longer 2860 mm (112.6") wheelbase.

In overall length, the "stepladder' is as follows:
3IS: 4,665 mm (183.7 in)
Mark X: 4,750 mm (187.0 in)
4GS: 4,850 mm (190.9 in)
Crown14: 4,885 mm (192 in)

In width (excluding outside mirrors), Mark X and Crown are a bit narrower, a natural given their JDM/Asia orientation. Here are the numbers:
Mark X: 1,795 mm (70.7 in)
Crown14: 1,800 mm (71 in)
3IS: 1,810 mm (71.3 in)
4GS: 1,840 mm (72.4 in)

Enough of the present, though. Let's shift towards the future. The transitions from N/New N to TNGA-L platforms imply longer wheelbases (given the kinda/sorta front-mid-engine placement) combined with less overhangs to minimize increases in overall length. Based on the Crown Concept dimensions, the Crown14 (N platform) to Crown15 (TNGA-L) transition implies a 2.4" longer wheelbase and a 1.3" increase in overall length.

Stepping aside for a bit, let's review what's happening with the N-to-TNGA-L transitions. Lexus LS and Toyota Crown are the first ones we know about.
(Crown Athlete and Royal, like Lexus ES, seem to be on an inviolable, clockwork-like 4-to-6-year cycle). Lexus IS is a given, it's safe to say. Lexus' 5GS and Toyota's Mark X, however, seem to be in a state of flux and indecision where Toyota's not sure how to proceed. With all due respect, Mark X is not so much a smaller GS/Crown as it is a sportier, rebodied Crown alternative with reduced overhangs that sells in a different JDM Toyota dealer network from Crown. The current-generation Mark X has been around since October 2009 (2010 model year), with facelifts for the 2013 and 2017 model years. Also notable is that the Chinese market version of Mark X, the Toyota Reiz was a flop whose production ended last week, per Wikipedia.

It's probable, as ssun30 suggests, that Lexus' 4IS will see yet another growth spurt vs its predecessor. Toyota, as stated earlier, is probably struggling with a decision on what to do with the next generations of Toyota Mark X and Lexus GS, large sedans in a crossover and SUV-mad world. Assuming they both survive, ssun30 might be on to something in suggesting that Mark X could align itself closer to IS and morph into something clearly smaller than Crown and Lexus GS. In that scenario, Toyota/Lexus TNGA-L sedan pairings would come in 3 sizes as follows:

Small: 3rd-gen Toyota Mark X / 4th-gen Lexus IS
Medium: 15th-gen Toyota Crown Athlete and Royal / 5th-gen Lexus GS
Large: 7th-gen Toyota Crown Majesta / 5th-gen Lexus LS
Well, the Mark X is reportedly going FWD circa 2020.
Carmaker1
Joaquin Ruhi
They're currently all closer together in size than you'd think. The 3rd-gen Lexus IS sits on a 2800 mm (110.2") wheelbase, while the current Mark X and 4th-gen Lexus GS share a 2850 mm (112.2") wheelbase, and the outgoing Crown Royal/Athlete use a slightly longer 2860 mm (112.6") wheelbase.

In overall length, the "stepladder' is as follows:
3IS: 4,665 mm (183.7 in)
Mark X: 4,750 mm (187.0 in)
4GS: 4,850 mm (190.9 in)
Crown14: 4,885 mm (192 in)

In width (excluding outside mirrors), Mark X and Crown are a bit narrower, a natural given their JDM/Asia orientation. Here are the numbers:
Mark X: 1,795 mm (70.7 in)
Crown14: 1,800 mm (71 in)
3IS: 1,810 mm (71.3 in)
4GS: 1,840 mm (72.4 in)

Enough of the present, though. Let's shift towards the future. The transitions from N/New N to TNGA-L platforms imply longer wheelbases (given the kinda/sorta front-mid-engine placement) combined with less overhangs to minimize increases in overall length. Based on the Crown Concept dimensions, the Crown14 (N platform) to Crown15 (TNGA-L) transition implies a 2.4" longer wheelbase and a 1.3" increase in overall length.

Stepping aside for a bit, let's review what's happening with the N-to-TNGA-L transitions. Lexus LS and Toyota Crown are the first ones we know about.
(Crown Athlete and Royal, like Lexus ES, seem to be on an inviolable, clockwork-like 4-to-6-year cycle). Lexus IS is a given, it's safe to say. Lexus' 5GS and Toyota's Mark X, however, seem to be in a state of flux and indecision where Toyota's not sure how to proceed. With all due respect, Mark X is not so much a smaller GS/Crown as it is a sportier, rebodied Crown alternative with reduced overhangs that sells in a different JDM Toyota dealer network from Crown. The current-generation Mark X has been around since October 2009 (2010 model year), with facelifts for the 2013 and 2017 model years. Also notable is that the Chinese market version of Mark X, the Toyota Reiz was a flop whose production ended last week, per Wikipedia.

It's probable, as ssun30 suggests, that Lexus' 4IS will see yet another growth spurt vs its predecessor. Toyota, as stated earlier, is probably struggling with a decision on what to do with the next generations of Toyota Mark X and Lexus GS, large sedans in a crossover and SUV-mad world. Assuming they both survive, ssun30 might be on to something in suggesting that Mark X could align itself closer to IS and morph into something clearly smaller than Crown and Lexus GS. In that scenario, Toyota/Lexus TNGA-L sedan pairings would come in 3 sizes as follows:

Small: 3rd-gen Toyota Mark X / 4th-gen Lexus IS
Medium: 15th-gen Toyota Crown Athlete and Royal / 5th-gen Lexus GS
Large: 7th-gen Toyota Crown Majesta / 5th-gen Lexus LS
Well, the Mark X is reportedly going FWD circa 2020.
Carmaker1
Joaquin Ruhi
They're currently all closer together in size than you'd think. The 3rd-gen Lexus IS sits on a 2800 mm (110.2") wheelbase, while the current Mark X and 4th-gen Lexus GS share a 2850 mm (112.2") wheelbase, and the outgoing Crown Royal/Athlete use a slightly longer 2860 mm (112.6") wheelbase.

In overall length, the "stepladder' is as follows:
3IS: 4,665 mm (183.7 in)
Mark X: 4,750 mm (187.0 in)
4GS: 4,850 mm (190.9 in)
Crown14: 4,885 mm (192 in)

In width (excluding outside mirrors), Mark X and Crown are a bit narrower, a natural given their JDM/Asia orientation. Here are the numbers:
Mark X: 1,795 mm (70.7 in)
Crown14: 1,800 mm (71 in)
3IS: 1,810 mm (71.3 in)
4GS: 1,840 mm (72.4 in)

Enough of the present, though. Let's shift towards the future. The transitions from N/New N to TNGA-L platforms imply longer wheelbases (given the kinda/sorta front-mid-engine placement) combined with less overhangs to minimize increases in overall length. Based on the Crown Concept dimensions, the Crown14 (N platform) to Crown15 (TNGA-L) transition implies a 2.4" longer wheelbase and a 1.3" increase in overall length.

Stepping aside for a bit, let's review what's happening with the N-to-TNGA-L transitions. Lexus LS and Toyota Crown are the first ones we know about.
(Crown Athlete and Royal, like Lexus ES, seem to be on an inviolable, clockwork-like 4-to-6-year cycle). Lexus IS is a given, it's safe to say. Lexus' 5GS and Toyota's Mark X, however, seem to be in a state of flux and indecision where Toyota's not sure how to proceed. With all due respect, Mark X is not so much a smaller GS/Crown as it is a sportier, rebodied Crown alternative with reduced overhangs that sells in a different JDM Toyota dealer network from Crown. The current-generation Mark X has been around since October 2009 (2010 model year), with facelifts for the 2013 and 2017 model years. Also notable is that the Chinese market version of Mark X, the Toyota Reiz was a flop whose production ended last week, per Wikipedia.

It's probable, as ssun30 suggests, that Lexus' 4IS will see yet another growth spurt vs its predecessor. Toyota, as stated earlier, is probably struggling with a decision on what to do with the next generations of Toyota Mark X and Lexus GS, large sedans in a crossover and SUV-mad world. Assuming they both survive, ssun30 might be on to something in suggesting that Mark X could align itself closer to IS and morph into something clearly smaller than Crown and Lexus GS. In that scenario, Toyota/Lexus TNGA-L sedan pairings would come in 3 sizes as follows:

Small: 3rd-gen Toyota Mark X / 4th-gen Lexus IS
Medium: 15th-gen Toyota Crown Athlete and Royal / 5th-gen Lexus GS
Large: 7th-gen Toyota Crown Majesta / 5th-gen Lexus LS
Well, the Mark X is reportedly going FWD circa 2020.
Carmaker1
Joaquin Ruhi
They're currently all closer together in size than you'd think. The 3rd-gen Lexus IS sits on a 2800 mm (110.2") wheelbase, while the current Mark X and 4th-gen Lexus GS share a 2850 mm (112.2") wheelbase, and the outgoing Crown Royal/Athlete use a slightly longer 2860 mm (112.6") wheelbase.

In overall length, the "stepladder' is as follows:
3IS: 4,665 mm (183.7 in)
Mark X: 4,750 mm (187.0 in)
4GS: 4,850 mm (190.9 in)
Crown14: 4,885 mm (192 in)

In width (excluding outside mirrors), Mark X and Crown are a bit narrower, a natural given their JDM/Asia orientation. Here are the numbers:
Mark X: 1,795 mm (70.7 in)
Crown14: 1,800 mm (71 in)
3IS: 1,810 mm (71.3 in)
4GS: 1,840 mm (72.4 in)

Enough of the present, though. Let's shift towards the future. The transitions from N/New N to TNGA-L platforms imply longer wheelbases (given the kinda/sorta front-mid-engine placement) combined with less overhangs to minimize increases in overall length. Based on the Crown Concept dimensions, the Crown14 (N platform) to Crown15 (TNGA-L) transition implies a 2.4" longer wheelbase and a 1.3" increase in overall length.

Stepping aside for a bit, let's review what's happening with the N-to-TNGA-L transitions. Lexus LS and Toyota Crown are the first ones we know about.
(Crown Athlete and Royal, like Lexus ES, seem to be on an inviolable, clockwork-like 4-to-6-year cycle). Lexus IS is a given, it's safe to say. Lexus' 5GS and Toyota's Mark X, however, seem to be in a state of flux and indecision where Toyota's not sure how to proceed. With all due respect, Mark X is not so much a smaller GS/Crown as it is a sportier, rebodied Crown alternative with reduced overhangs that sells in a different JDM Toyota dealer network from Crown. The current-generation Mark X has been around since October 2009 (2010 model year), with facelifts for the 2013 and 2017 model years. Also notable is that the Chinese market version of Mark X, the Toyota Reiz was a flop whose production ended last week, per Wikipedia.

It's probable, as ssun30 suggests, that Lexus' 4IS will see yet another growth spurt vs its predecessor. Toyota, as stated earlier, is probably struggling with a decision on what to do with the next generations of Toyota Mark X and Lexus GS, large sedans in a crossover and SUV-mad world. Assuming they both survive, ssun30 might be on to something in suggesting that Mark X could align itself closer to IS and morph into something clearly smaller than Crown and Lexus GS. In that scenario, Toyota/Lexus TNGA-L sedan pairings would come in 3 sizes as follows:

Small: 3rd-gen Toyota Mark X / 4th-gen Lexus IS
Medium: 15th-gen Toyota Crown Athlete and Royal / 5th-gen Lexus GS
Large: 7th-gen Toyota Crown Majesta / 5th-gen Lexus LS
Well, the Mark X is reportedly going FWD circa 2020.
S
Carmaker1
The Mark X is going FWD, moving to utilize TNGA-K.
Wow, that will be turn down a lot of Mark X loyalists, might as well axe that vehicle. Mark X lives because of the enthusiasts and going FWD is suicidal.

Also from what you said the biggest TNGA-K vehicle will be the ES with no plans for new Avalon? (makes sense since the Highlander will just eat it for breakfast)
S
Carmaker1
The Mark X is going FWD, moving to utilize TNGA-K.
Wow, that will be turn down a lot of Mark X loyalists, might as well axe that vehicle. Mark X lives because of the enthusiasts and going FWD is suicidal.

Also from what you said the biggest TNGA-K vehicle will be the ES with no plans for new Avalon? (makes sense since the Highlander will just eat it for breakfast)
S
Carmaker1
The Mark X is going FWD, moving to utilize TNGA-K.
Wow, that will be turn down a lot of Mark X loyalists, might as well axe that vehicle. Mark X lives because of the enthusiasts and going FWD is suicidal.

Also from what you said the biggest TNGA-K vehicle will be the ES with no plans for new Avalon? (makes sense since the Highlander will just eat it for breakfast)
S
Carmaker1
The Mark X is going FWD, moving to utilize TNGA-K.
Wow, that will be turn down a lot of Mark X loyalists, might as well axe that vehicle. Mark X lives because of the enthusiasts and going FWD is suicidal.

Also from what you said the biggest TNGA-K vehicle will be the ES with no plans for new Avalon? (makes sense since the Highlander will just eat it for breakfast)
S
Carmaker1
The Mark X is going FWD, moving to utilize TNGA-K.
Wow, that will be turn down a lot of Mark X loyalists, might as well axe that vehicle. Mark X lives because of the enthusiasts and going FWD is suicidal.

Also from what you said the biggest TNGA-K vehicle will be the ES with no plans for new Avalon? (makes sense since the Highlander will just eat it for breakfast)
S
Carmaker1
The Mark X is going FWD, moving to utilize TNGA-K.
Wow, that will be turn down a lot of Mark X loyalists, might as well axe that vehicle. Mark X lives because of the enthusiasts and going FWD is suicidal.

Also from what you said the biggest TNGA-K vehicle will be the ES with no plans for new Avalon? (makes sense since the Highlander will just eat it for breakfast)
S
Carmaker1
The Mark X is going FWD, moving to utilize TNGA-K.
Wow, that will be turn down a lot of Mark X loyalists, might as well axe that vehicle. Mark X lives because of the enthusiasts and going FWD is suicidal.

Also from what you said the biggest TNGA-K vehicle will be the ES with no plans for new Avalon? (makes sense since the Highlander will just eat it for breakfast)
S
Carmaker1
The Mark X is going FWD, moving to utilize TNGA-K.
Wow, that will be turn down a lot of Mark X loyalists, might as well axe that vehicle. Mark X lives because of the enthusiasts and going FWD is suicidal.

Also from what you said the biggest TNGA-K vehicle will be the ES with no plans for new Avalon? (makes sense since the Highlander will just eat it for breakfast)
S
Carmaker1
The Mark X is going FWD, moving to utilize TNGA-K.
Wow, that will be turn down a lot of Mark X loyalists, might as well axe that vehicle. Mark X lives because of the enthusiasts and going FWD is suicidal.

Also from what you said the biggest TNGA-K vehicle will be the ES with no plans for new Avalon? (makes sense since the Highlander will just eat it for breakfast)
S
Carmaker1
The Mark X is going FWD, moving to utilize TNGA-K.
Wow, that will be turn down a lot of Mark X loyalists, might as well axe that vehicle. Mark X lives because of the enthusiasts and going FWD is suicidal.

Also from what you said the biggest TNGA-K vehicle will be the ES with no plans for new Avalon? (makes sense since the Highlander will just eat it for breakfast)

S