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Old Jul 21, 2025 | 09:11 PM
  #16  
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Originally Posted by edwong
I drove both LC500 with DHP and Bespoke build back to back on Sonoma raceway during performance school because I want to see what is different. I don’t feel much difference at all, and sometimes feel artificial with DHP. I feel more stable at turn with Bespoke car, then I asked instructor about rear wheel steering, he said it maybe help if you push car to max limit and it is more like to help in parking lot.

But I still bought car with DHP because I wanted those options.
That is reasonable and not everyone is going to have the same impressions or opinions. I doubt the differences with DHP are dramatic but most drivers do report that they are noticeable and in most cases positive. Still an exceptional car with or without DHP.
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Old Jul 21, 2025 | 09:12 PM
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^^^^^I did not want a DHP car for the reasons you state, and because I felt that the maintenance (alignment, etc) would be higher than a conventional rear axle machine, and the rewards would not be worth it in the real world. My LC with wider wheels and tires handles just fine

Lou
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Old Jul 22, 2025 | 05:17 AM
  #18  
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Originally Posted by edwong
I drove both LC500 with DHP and Bespoke build back to back on Sonoma raceway during performance school because I want to see what is different. I don’t feel much difference at all, and sometimes feel artificial with DHP. I feel more stable at turn with Bespoke car, then I asked instructor about rear wheel steering, he said it maybe help if you push car to max limit and it is more like to help in parking lot.

But I still bought car with DHP because I wanted those options.
Interesting and I didn’t think about checking while at the Indy Performance school. Only thing I remember is every LC I used was a Bespoke version. Also didn’t notice any changes or use of the wing (to be fair I was just trying to stay on course). Same with HUD, for some reason every car had it turned off. Our instructors only used the RCF’s (pace car), they preferred that over the LC.
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Old Jul 22, 2025 | 05:21 AM
  #19  
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Originally Posted by 2959
Interesting and I didn’t think about checking while at the Indy Performance school. Only thing I remember is every LC I used was a Bespoke version. Also didn’t notice any changes or use of the wing (to be fair I was just trying to stay on course). Same with HUD, for some reason every car had it turned off. Our instructors only used the RCF’s (pace car), they preferred that over the LC.
Same when I went in Atlanta, they were all bespoke (at least in my group).
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Old Jul 22, 2025 | 07:24 AM
  #20  
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Originally Posted by np20412
Same when I went in Atlanta, they were all bespoke (at least in my group).
1 of car in our group has DHP, I asked guy if he want to switch after 1st round.
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Old Jul 22, 2025 | 12:58 PM
  #21  
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Originally Posted by 400Mman
@JamesAbbe

”Curb to Curb shows 17.7 (ft) then 17.4 (ft) w/ Active Rear Steering.

This is about 1.7 % or so, which seems rather small, and now I am wondering if we are just getting a placebo effect or not.”

Admittedly those are not drastic differences but experienced reviewers such as Savage geese who’ve driven DHP vs non-DHP said there’s a distinct feel/difference between them.
Around a low-speed 90 degree corner, you can DEFINITELY feel the rear steer effect - superficially, it feels almost like power-on oversteer - you get used to it pretty quickly, though. I wonder if the average yaw effect in the curb-to-curb turning exercise is significantly lower than the peak effect - for example if the rear steer is not activated until a certain speed above zero...
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Old Jul 29, 2025 | 12:35 PM
  #22  
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Originally Posted by 400Mman
@JamesAbbe

”Curb to Curb shows 17.7 (ft) then 17.4 (ft) w/ Active Rear Steering.

This is about 1.7 % or so, which seems rather small, and now I am wondering if we are just getting a placebo effect or not.”

Admittedly those are not drastic differences but experienced reviewers such as Savage geese who’ve driven DHP vs non-DHP said there’s a distinct feel/difference between them.
So the rear-wheel steering in the LC 500 is primarily tuned for high-speed stability and cornering agility and not for reducing the curb-to-curb turning diameter (which I assumed incorrectly).

Unlike systems like Honda’s mechanical 4WS in the 3rd Generation Prelude, which actively counter-steered at low speeds to tighten the turning circle from 17.4 ft to 15.7 ft.

Last edited by RyanRA; Jul 29, 2025 at 12:40 PM.
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