First impression:
I've just started the game, and did a quick race. This means no car/track choosing but immediate action.
First thing that I'm impressed with are the Graphics. They look really sweet. And the framerate is high enough for decent racing. I didn't experience any lag during the race. The psychics of the car, look at first hand realistic. The car (Ford Explorer in this case) went over bumps in a realistic way, causing the car to bump some further when back on the road.
1 less good point I encountered during the race I've driven is that there are virtual barriers. I mean that the track is barriered at the outsides so there's no cutting and such.
If it's an arcade game or a sim game, I'll tell after more intense testing this night
So stay tuned