I play the hell out of Forza 4...I'm currently wrapping up the E class World Championships...then I'll start in on all the D class races.
I have a 370Z modified to mirror my car that I use to "play" with....still trying to find that last tenth I need to tie Stig's time around the Top Gear test track. LOL
That game is great....love it.
Stig lap: Nissan 370Z - BBC Top Gear