meh
It was okay.. you know you can cheat by going through the walls and past the finish line. Just make some invisible checkpoints and make sure the player passes through all of them..
Yeah AI cars would be great, they arent really that hard to make either.. Just add 2 invisible balls infront of the car and when a wall hits the invisible balls, make the car turn.
....Also maybe the music needs to be toned down a bit.