Good racing games recommendations for PC?

IMO Dirt 2 is the best driving game I have come across,very good and realistic damage(as far as games go), sound, car selection, number of events etc. And you can make use of it in DX 11 with your 5770:)
 
Maybe you should check out rFactor, it should be pretty good and realistic. Plus it's possible to get expansion packs that mimics Formula one and alot more.
 
the earlier nfs games (1990's) were awesome, but the newer ones suck with the exception of Shift which is just decent imo.

Dirt 1 and Toca Race Driver are okay...
 
I have been playing Split Second recently on my PC and it's a lot of fun if you're not looking for hard-core simulation.
 
The NFS series has sucked since Carbon. But I just played the new Hot Pursuit game at a convention here and I was impressed. Of course, that's probably because it's being developed by Criterion Games, instead of EA.
 
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