Rollerrennen, the 24 hour scooter race, on a dirt track in Germany south of Hamburg- seems to be in the same fun category as TROG, LeMons, etc. Happens next Friday, Aug 25th (Thanks Astericx!)

team names are fun too:

Grip Sluts,  Nooby-Racing, team low budget, and the best one? Your Mom's Favorite Team

http://24h-rollerrennen.de/
https://www.facebook.com/24hRollerrennen/