Well, the car looks like an '80's M3 to me, but as you're the BMW expert I'll leave the final decision up to you.
As for the other cars, it seems likely that the rally car will be the Audi Quattro, the "most requested muscle car" suggests Trans-Am if they got the licensing sorted out (Firebird if not?) but I don't know about the rest.
I really wanted the track to be Alpine Ring, but that just doesn't look like it to me. All the talk seems to be of Road America over at .net, but my mind is thinking Tokyo, mainly because there is that red paint which the track had on the start/finish straight. I really hope I'm wrong because that track was a crash-fest at the best of times
