The car goes back and forward a little bit, but the sound is fine. The only pattern the crashes seem to follow is that they all happen in city tracks (Happened in the first race, not in the second because it was with sand, and is happening in the 3rd again).

I forgot, specs are

4870x2 2GB
6GB DDR2 800 Mhz
Intel Core 2 Duo 3.00 Ghz (2 CPUs)
650 Watts PSU
Creative X-Fi Xtreme Audio Soundcard

[Edited by ArchDuke, 9/11/2009 9:39:19 PM]