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Thanks for sharing. Turbo lag is probably noticeable on the TX with the 4 cylinder one.
Very flat torque curve engineered by Lexus is quite an accomplishment. It eliminates any discernible lag, as most modern turbo charged engines these days have managed.
I was concerned about a 4 coming from an V6 and extremely satisfied to date on how smooth this engine mated with 8 speed in all modes really is performing.
I have had other turbo charged cars, both single and twin, and the technology is quite advanced now.
I did drive other SUVs that are turbocharged and it was difficult to feel any lag. What was interesting were the hybrid cars that hesitated between the shift from gas to hybrid assist. Did not care for the CVT transmission in the 550h with the 2 speed and the 500h has a 6 speed and taller gears/noise…..
Very flat torque curve engineered by Lexus is quite an accomplishment. It eliminates any discernible lag, as most modern turbo charged engines these days have managed.
I was concerned about a 4 coming from an V6 and extremely satisfied to date on how smooth this engine mated with 8 speed in all modes really is performing.
I have had other turbo charged cars, both single and twin, and the technology is quite advanced now.
I did drive other SUVs that are turbocharged and it was difficult to feel any lag. What was interesting were the hybrid cars that hesitated between the shift from gas to hybrid assist. Did not care for the CVT transmission in the 550h with the 2 speed and the 500h has a 6 speed and taller gears/noise…..
Interesting analysis. I was watching a few famous youtube review and they indicated a lag. The 550h has an e-CVT (drone noise) which is different than a CVT (gives rubber band feel). I have a NX350h and it drones (use to it now but not my favorite thing).
I have about 2500 miles on a TX350 AWD and at highway speeds do not feel any lack of power to pass when needed. A slight turbo lag is noticeable when trying to pass uphill.
What I noticed is the jerk when shifting from first to second and second to third when you are light on the accelerator pedal - feels like a slip at times. I expected a much smoother shifting. It is not there if you are accelerating through the gears hard or in sport mode but I am very light foot so I always notice it and the car is in Eco mode.
Interesting analysis. I was watching a few famous youtube review and they indicated a lag. The 550h has an e-CVT (drone noise) which is different than a CVT (gives rubber band feel). I have a NX350h and it drones (use to it now but not my favorite thing).
It is NOT an e-CVT in the Lexus TX 500h. The 500h is equipped with a 6-speed automatic transmission, specifically designed for its hybrid powertrain.
I was worried about turbo lag. Best one it appears is the TX500h (but thinking the aggressive seat boosters maybe too intrusive though). The Grand Highlander Hybrid Max isn't that refined though.
Originally Posted by nsturk725
I have a 500H and I don't have any issues with Acceleration. I agree that it's not a race car, but it gets the job done.
The TX500h F Sport has plenty of power and the hybrid drive-train makes it immediately available. There is immediate torque at almost any speed, although at very slow speeds there is occasionally a hiccup when the truck can't seem to figure out if it should be in electric or gas mode. That's a minor annoyance and doesn't happen often with my TX. AS far as the bolstered seats go. I'm a big guy and I love them. It would be cool if they had adjustable bolsters so I could loosen them up a little, but having driven a TX350 loaner with the regular seats, I feel the F Sports seats are more comfortable and supportive. The plain TX350s seat made me feel like if I tried to corner at anything above walking speed, I might slide off! Very couch like to me.
None of the TX models are quick - they are utilitarian SUVs.......if you want a fast SUV, get a Ferrari, Porsche, etc for twice + the price...........its great that the model engine selections are quite differentiated with the TX........
Last edited by SilverElegance; Jul 14, 2025 at 06:50 AM.
None of the TX models are quick - they are utilitarian SUVs.......if you want a fast SUV, get a Ferrari, Porsche, etc for twice + the price...........its great that the model engine selections are quite differentiated with the TX........
I was lucky enough to find a 500h at the dealer I was trading in an Audi RS5. I took a test drive and that made the decision easy. The 500 has a large supply of power and torque. 366 hp and over 400 torque. The ride is quiet with no straining of the gas engine. Real world mpg are 25 overall. The seats are also very comfortable on the F sport. Hope this helps.
I found mine f sport seats uncomfortable especially compared to the 350 luxury trim seats.
(I really don't want the rear steering, the adaptive suspension,.
Those are the main reasons to get the 500h. The rear steering is a game changer. The adaptive dampers are subtle, but it's very well damped, not bouncy, with just the right level of sportiness for a large SUV. It drives like a much smaller vehicle.
