my friend and I figured out a really cool way to make a rally track for the subaru's. Take this stuff called "Durham's Water Putty" and spread it all over the track. then, take a sponge and dab it all over to give it a rough surface. when it's all dry, paint it with a base coat of brown, then spraypaint (very lightly) the inside, outside, and middle of the track, with grass green paint. cool eh?