At first I got really frustrated and bored but then I realized that you can use the coins to purchase (unlock) other races at different levels, then I got hooked. Once I was able to complete all the levels, it seems there are some glitchs that allowed you to get a couple new cars (jeep and "back to the future" dilorian) Some tracks are pretty difficult and frustrating but keep at it and its great fun once you know the tricks. (the other cars arent as good as "wolf" the little VW golf). You can use coins and convert them to use in bodyshop to custom your car how you like.