Lexus GX 460 Auto Field Guide Profile


GX 460 in Automotive Design & Production

By following the career arc of Lexus GX chief engineer Makoto Arimoto, industry magazine Automotive Design & Production provides an interesting profile of the Lexus GX 460 development process.

Arimoto, who worked on everything from chassis engineering to fuel cells, started planning the GX 3 years ago when large body-on-frame SUV market were still in healthy demand. The GX 460 sought to expand on the attributes that made its predecessor successful—however, rather than follow precedent and increase engine displacement, the GX 460 has a slightly smaller powerplant producing 31 more hp and 1 lb.-ft. less torque.

Despite gains in width, length, and weight, the new GX has a 0.3 second faster 0-60 time and is 13% more fuel efficient; the article points out that the GX 460’s 17 mpg combined fuel economy with its V8 engine outperforms that of many rival SUVs, including crossovers:

    • Audi Q7: 13/18/15
    • BMW X5: 14/19/16
    • Land Rover LR4: 12/17/14
    • Mercedes ML550: 13/18/15
    • Mercedes GL450: 13/17/14
    • Acura MDX (w/V6): 15/20/17
    • Lexus GX 460: 15/20/17

The theme behind the GX 460’s exterior design, a melding of L-finesse with “machined steel bar” concepts, and the “Tough Premium” interior concept, are also identified.  Besides the technological details that many GX 460 articles and reviews have discussed, mainly in the off-roading arena, this profile gives a glimpse of the engineering and design principles which shaped the new mid-size Lexus SUV.

[Source: Automotive Design & Production]

Comments


Comments


  1. sniff* sniff* crying
    The days of freeways full of SUVs and only one or two camrys and accords are over mad
    The days of naturally-aspirated horsepower and torque wars are over mad

  2. Who knows maybe more efficient hybrid SUVs are in the future…

  3. Dan:Who knows maybe more efficient hybrid SUVs are in the future…

    but… but… no VROOM VROOM on demand mad

  4. @Dan: I’d love to see a GX450h or LX600h.

  5. James:@Dan: I'd love to see a GX450h or LX600h.

    I’d love to see Toyota find the faults in automobile if they’re thinking of moving on to hybrids and ultimately, electric vehicles.

    They should just have four electric motors at each wheel that works in conjunction with the braking and cooling system (cooling by efficiently sucking air into thin funnels as the wheels spin). The battery will help maintain balance, and as new generations arrive, the vehicle grow in interior and trunk space by receiving new, more powerful, and more compact battery packs. And of course, there are gonna be mechanical-hydraulically-supported braking, brake lockup, and steering that can be engaged mechanically for safety… hopefully making everything virus proof. lol

    ooo… but how are we going to deal with the potential cancer-causing hazards by the electric systems without weighing down the car? Perhaps use something that sucks in the radiation to power the exterior and interior electrical systems?

  6. James:@Dan: I'd love to see a GX450h or LX600h.

    I still can’t believe that neither the GX or LX have been offered as a hybrid, especially now that Lexus has reduced the size of their batteries.

  7. @krew: Who knows? Maybe Lexus is working on them now.

    I think one reason there isn’t a GXh or LXh yet is the cost. The LX starts at $76k. How much would an LXh cost? $90k-100k? If they did decide to make an LXh, the interior would have to recieve a major upgrade. Kind of like how the LSh’s interior is alot nicer than the LS460’s.

    I think we will eventually see a hybrid option for every car in the line-up though.

  8. This Is Stunning ! Well , I Mean I Didn’t Expect GX Will Get The Most Fuel Economy In Same Grade ...

  9. James:@krew: Who knows? Maybe Lexus is working on them now.

    I think one reason there isn't a GXh or LXh yet is the cost. The LX starts at $76k. How much would an LXh cost? $90k-100k? If they did decide to make an LXh, the interior would have to recieve a major upgrade. Kind of like how the LSh's interior is alot nicer than the LS460's.

    Now that I think about it, a LXh would probably suffer from the same knock on the LSh—more expensive with very little MPG benefit due to the weight of the batteries.

    (Maybe we’ll see a GXh before the end of this generation.)

  10. @krew: How about we don’t limit the power of the electric engine, give the LX a touch transmission for 4WD, give the LX some huge batteries, and LET IT RIP!

  11. Good ideas all…considering how the market for the body-on-frame SUV is limited, any future hybrid variant would likely take up the whole model range. I think cost is a reason, limited volume, also the (initially) limited returns of a hybrid system on such a big heavy vehicle, plus the difficulty in engineering the intricate and complex hybrid system for heavy-duty off-road performance (e.g. the ease at which the LX, Land Cruiser etc. can trundle through desert, snow, or even muddy/river conditions, things that might compromise hybrid performance).  However never say never…

  12. @Dan: NEVER! I want Lexus to give me a lively 10L V16 in the LX that can growl and shrill, cruise at idling rpms, and run more efficiently than an SUV wannabe! (ahem Acura MDX with its puny, little worn out V6)

  13. Dan:...the difficulty in engineering the intricate and complex hybrid system for heavy-duty off-road performance (e.g. the ease at which the LX, Land Cruiser etc. can trundle through desert, snow, or even muddy/river conditions, things that might compromise hybrid performance).  However never say never…

    You know—I think this might just be why neither the GX or LX are available as hybrids. In fact, they didn’t release the LSh in the Middle East until this year for this very reason.