You have struck gold...
This has immense potential, easily on the front page with a couple of tweaks.
I'd be interested in the code you used for the car, because it is actually quite realistic.
Although, the wheels are not very visible and the game is meant to be played at a fast pace, so I would be happier if the wheels turned themselves back to the center of the car, instead of having to hold the opposite direction after you make a turn.
Acceleration in general could be quicker.
I'm very impressed with this game, and I hope you work out the details to make something really great.