Hey guys....
If you haven't heard about live for speed yet, it is by far the most realistic simulator of driving that i have experienced. Calling it a video game would be wrong. Here's the link to it...
http://lfs.racesimcentral.com/
The best part is that you can design your own auto-x courses (in the full version $22) and download courses that others have made. I just downloaded the 2001 scca nationals course and its just kinda cool (especially if you were there or raced in it... not me though). I highly reccomend this game... i mean driving simulator.