A little bare bones right now. The driving controls are fine, but the game itself is lacking in content. I would also suggest working on your art assets. Still, keep working. You can go somewhere with this.
The controls are horrible, and it would be nice to know what they are before the game starts (Holding arrow keys scroll in most browsers).
I also highly suggest you have the tracks side by side, as it is currently it looks HORRIBLE.
Honestly the only reason I'm giving it any stars is because it's at least playable, though it's not enjoyable to play it :/