Exterior, interior and rims: Turn 10 Studios (Forza Motorsport 4)
Engine: Slightly Mad Studios (Project CARS)
Converter in GTA 4: Nikola76

Supports vinyls, archive, scan to create your own
The model supports all the basic functions of the game
There are 7 extras:
-a German number
-German rear room
-front bumper
-rear bumper
-front room California
-the back room of California
-spoiler