I think it needs lightmapping on the roads…
Hi! 
The game looks pretty cool already. Reminds me a little bit of full throttle (good old times^^).
Could you tell us a little bit more about the project? When did you start, how many people are involved etc.
A webplayer build would be interesting too, to test the controls and the feeling, sitting on the bike, fighting against the opponents^^
Still a lot to do of course, but wish you all the best and good luck