Wikipedia
The ChumpCar World Series is a series of automotive endurance races held on paved road race courses across North America. The races range in length from 6 to 38 hours. The name is a parody of Champ Car, a defunct open wheel professional racing series. Races are sanctioned throughout the United States, as well as in Canada and Mexico. Teams are encouraged, but not required, to decorate their cars with themes.
The series is similar in some ways to the 24 Hours of LeMons, another low-cost endurance racing series. The series has a different overall philosophy, however, placing more emphasis on racing and less on decorations, costumes, and themes. ChumpCar's slogan is "Real Racing, Real Tracks, Real Cheap Cars", and its stated mission, as stated on its website, is to be "...a throw-back to the era when racing was fun and cheap... when Bondo beat carbon-fiber; when a crescent wrench was the most valuable tool in your box; when home-made engineering made everyone sit up and take notice; and when adding a little theme to your car didn't get you laughed off of pit lane. Those were good times... and they're back." Competitors generally refer to themselves as Chumps.