If you are interested in mods, I'm doing a Skyline R33 GTS25/25t and GT-R to AC (PC)
Soon will be released for free, I just need to find someone who has a R33 with stock suspension/springs and could help me finish the physics, Because there are some data that I need but can't find it by Google, however that can be obtained through measurements made directly in the car.
There is a real R33 GTR that I have access but it is modified so... I even intend to do tuned and drift versions in the future, but we want to finish the stock one before that.
Check my WIP Thread in the RD:
http://www.racedepartment.com/threads/w ... 33.127947/
It's completely made from scratch by me