I thought this ad was a pretty neat idea. I played that game for hours on end on my PDA years ago...
In the "making of" video, you see they used G-25! (And it looks like their simulator has the same kind of hit-something-and-send-the-car-flying issue as LFS, lol.)
I wonder what simulator they used But looks crap though, so I guess it wouldn't be too much fun. If you want to have fun with it, it needs rendering and I think the simulator takes a lot of cpu power.