Cute drawings and fun concept. I would have liked to be able to speed up the race at any point because it becomes less interesting after the first lap. The first race path I drew was very long because I didn't know it would take so long, I had to leave the game and come back because there was no obvious way to restart. Also, I wasn't sure what the gold was for. I'm guessing it's just something that didn't make it into the game because of the time limit.
Cute little game, well done!