Junk car racing is, at minimum, a competition that tests the aptitude of inexpensive vehicles. The most notable incarnation of this is "24 Hours of LeMons," a parody of the original "24 Hours of Le Mans" races, and it outlines specific parameters that participants must follow.
Founded in 2006 by Jay Lamm, "24 Hours of LeMons" is held on paved streets and private race tracks throughout the United States. Over the course of an entire weekend, racers participate in a tech inspection, track testing and lengthy endurance contests. A gala celebration follows, and prizes are awarded. To earn a title, drivers must pass a regimen of qualifying endurance tests and the main event.
As of 2016, registrants must arrive with a vehicle that cost no more than $500 total, including the cost of purchasing the car and upgrades. Additional money may be spent on safety equipment, wheels, tires and brakes. Some safety equipment is mandatory, such as a roll cage, fire extinguisher and full competition harnesses.
To thwart dishonesty about money spent, organizers reserve the right to purchase any of the racing vehicles for $500 at the end of the race. In the likely event that organizers do not purchase a participant's vehicle, some tracks take junk vehicles afterward if a participant does not want to bring the car home.