I spent some time over the last few weeks helping a coworker shop for "something nice that can fit both of my kids comfortably and costs around $50-55k." That pretty quickly came down to RX, MDX, QX60 and... Highlander.
I won't go into all of the details, but I really don't understand how the Acura brand is still in business. We drove the RDX, TLX and MDX and I know Acura's entire model range is a bit long in the tooth right now, but I was kind of shocked by the general downmarket feel of each of them. That certain quirky Honda-ness shines through and I understand some people like that, but the RDX and TLX were pretty quickly eliminated because of size. The MDX was eliminated because of the interior and dashboard. The interiors of all three have tons of plastic, minimal wood and generally didn't feel "premium" with regard to fit and finish. The current CR-V and Accord are much more impressive, but I don't care for all of the shiny black plastic inside the Pilot. Overall, the Acuras felt no better than Hondas, Toyotas, Fords, etc.
Infiniti QX60 was pretty nice inside but she didn't like the CVT transmission and it was a bit out of her price range. They tried to sell her on a CPO model.... but...
... then we went to the Toyota dealership and drove a Highlander Platinum Hybrid. I can't believe I'm saying this, but the Highlander handily trounces the MDX and QX60 without a second thought. Neither holds a candle to the Toyota. The only case I can make for buying either of those is if you absolutely have to have a premium badge. Highlander drives better, handles better, feels much more solid on the road, has nicer interior amenities, is more powerful, gets better MPG and costs $10-15k less. Im really baffled about how Acura or Infiniti are selling any of these in comparison to a Highlander.
We also spent some time at the Lexus dealer driving ES and RX, and she really, really loved the RX. "ES is nice but looks like a boat" was the exact phrase from my friend. With options comparable to a Highlander, the RX quickly creeps beyond $55k and the interior is a lot smaller. Ultimately, the Highlander won out because of versatility, extra space and price, but my point in telling you all of this is that when Lexus unleashes the RX L, it will be a very, very hard time for Acura and Infiniti dealers. The interior of the RX feels 2 classes above the MDX and at least one above the QX60. The RX also outshines both on the road with passenger comfort, smoothness and powertrain refinement. The MDX drives kind of hard and while it handles decently, it doesn't give you the same feeling of quality and solidarity that an RX does. QX60 felt slow and unresponsive because of the CVT.
If the RX L has a decently usable third row, it's going to be a bloodbath for the other two.... probably for some other competitors as well. Overall, I was reminded why the RX is so popular - it's so comfortable, beautifully built, has all the right tech options, has an interior that's pleasing to the eye and fingers, feels solid and composed on the road and feels a little more expensive than what it really costs. It ticks all the boxes. Honestly, so does the Highlander just with fewer amenities, but this is going to be a great, GREAT addition for Lexus dealers. Can't wait to see the execution.