I used to race in the RC Mini-Z series at Hobbytown USA a few years back. It was a lot of good, cheap fun. I made this video for the store then:
YouTube - Mini-z RC Car Racing, IN-CAR CAMERA!
Video gets much better at about 1:18

But for some reason, no matter how popular the race series was, we just didn't seem to get support from the owners of the store. They wanted our track gone so the dungeons and dragons nerds had somewhere to play or something like that.