Myself an 49 of my closest friends paid 50 dollars a head to grudge race for the day at the track in Union Grove Wisconsin. They had a bracket race but I did not participate in that. I basically went for times but did get to race some comparable cars and I won about half of the time. I suprised myself on how well the car ran.
One thing that came to light for me during this event was the fact that car shows seem boring compared to racing. Walking around and looking at cars at a show is like watching a sport on TV/napping. Granted it is definately cheaper, but racing I guess now that I've done it, is why I got my car. Oh Baby was it fun.