I love me an Outrun-like! The spawning-in thing is a killer, but it's funny how that ends up becoming a feature. Picking acceleration to begin with seems to be key. If you put a bit of polish/forgiveness into the collisions I think it would be more fun (racing is more fun than crashing!).
My only real complaint is that the left wall looks further away than the right wall, so the road isn't centered. This is really triggering my OCD ;)