Originally posted by razorace 
 Actually, the hard part would probably be trying to get car physics to feel real.  
 ...or you could just play Quake III Rally (
http://www.quakerally.com/) (which, of course, requires that you have Quake III Arena (
http://www.idsoftware.com/games/quake/quake3-arena/) installed, but it's a pretty fun mod if you like the rally car concept). 
 Unfortunately, they don't have the source code posted for the mod.  
 bummer. 
 :holosid: