Andrew Gotow, Unity & Maya developer has provided this excellent tutorial to setting up a car in Unity. Whilst there have been tutorials on this in the past, currently the Unity site lacks its former ‘Race Demo’ example project – this more than fills that void, a big thanks to Andrew for providing this to the community, Cheers!

http://www.gotow.net/andrew/blog/?page_id=78

From Stanford University, this series of videos on youtube will get you started in your approach to ideal programming methodology, start out with this one and work through the series, you’re bound to find enlightenment!

http://www.youtube.com/watch?v=KkMDCCdjyW8