@Progger: Nice start. I like the cockpit and the idea of a racing game. I`m a huge iRacing and Live for Speed fanboy. Does the game support steering wheels?
Have you ever thought of buying a nice racetrack on turbosquid for you game like this one? http://www.turbosquid.com/3d-models/3d-bathurst-track/569434 That could give your project a turbo boost laugh