The interface is a bit...cluttered. Something a bit cleaner would be nice. I'm glad to see COT and Truck physics are coming soon. Hoping templates will be released with that. I wouldn't mind seeing a couple more tracks, but aside from that, I have to agree that the damage system is a bit harsh...that is, IF it carries over to COT and Trucks. The COT especially can take quite a beating. We saw Jeff Gordon slam into the wall twice at Texas last year I believe and he managed to salvage a 6th place finish (I think). We see these cars take a beating and still turn in impressive lap times.
EDIT: I'd like the graphics to be improved too, if possible. The cars especially look VERY pixelated and my settings are on max I believe.