No, I think I've tried that.
This is a good show of FM4's best side, imho, with the great work they did on copying Top Gear's cameras. Unfortunately you can also see the loss of grip issue that I discussed prop op twice, and the second one just doesn't make sense.
Two things, first...try again maybe doing full accel or brake (maybe it isn't analog in the menu screens) for RT/LT. Second, I have no clue what I'm looking at in the video comparison all I know is that playing in the base mclaren in whatever challenge it was might have been the most frustrating driving I have ever done in the game, ugh. I have no clue if it is my skilllessness or the driving model or thats how I would feel driving in real life all I know is that it is off my "I wanna get one of these when I grow up list"! So, from a PR perspective, I can imagine why people want perfect or accurate driving and/or racing models but for me I'm looking mostly for fun and "close enough that I believe it" driving/racing models.
I have no clue if I would find that in GT5 or not but I do know that I have never had more fun in a racing title before. As a matter of fact even with knowing nothing about most every autovista car me and my son, we went through a good 5-7 challenges to unlock the AV model just so we could learn about them. Maybe that is a knock against the game that an arcade racer kinda family would enjoy Forza but I certainly don't see that as a negative and from a personality stand point...I don't know...I certainly don't feel like every F,D,C is the same even if I use a saved tune but again I'm certainly not trying to speak from any position of authority.