I want to contribute this as it might be helpful for some people. The code is commented and easy to understand. Includes:

-A PhysX car with proper parameters so it has a more realistic behavior. It has a 6-gear manual gearbox with speedometer and rpm-meter.
-AI traffic cars that follow path, reacts to stops signals, speed limit signals, traffic lights and other cars.

-Traffic signals models made by me, you can use them if you want
-Road models by Reiner “Tiles” Prokein

Move with arrow keys, toggle camera with c and shift gears with a and z



Download link: http://www.mediafire.com/?vts4cqlgjribi67