I'm jealuos!!!!!
I used to do a lot of dirt track enduro's in the upper midwest. They are bascially a demo derby while going around the track. There were only two rules. One, Stop where you are at if the Red flag is displayed. Two, there are no rules except for rule #1 so anything goes.
Sometimes we ran the race going counterclickwise, sometime clock wise and sometimes half the race one way and then the second half the other way.
$500 for a car ready to go, a tank of gas and usually a $100 entry fee gets you on the track. Races were typically 2hr or 200 laps which ever came first and first prize was usually around $1,500 - $2,500.
Man now that I am talking about enduros I might have to start doing them again.