What is the name of the main racing championship in Pixar’s Cars?

The Piston Cup is the main racing championship in Pixar’s Cars.

The Piston Cup is the fictional stock-car championship at the center of the first film. Lightning McQueen is a rookie competing for the title, while veteran racers such as The King and Chick Hicks are established contenders. The championship drives the plot because the tiebreaking final race sends Lightning toward Radiator Springs.

The name evokes the piston-powered engines associated with traditional automobile racing. It also resembles the naming style of real motorsport trophies, including NASCAR’s former Winston Cup and later championship titles, although the Piston Cup is a fictional competition within the Cars universe.

Doc Hudson’s backstory gives the championship additional importance: he was once a three-time Piston Cup winner before an injury ended his racing career. Lightning’s experiences eventually teach him that winning the trophy is not the only measure of success. Cars 2 instead centers on the World Grand Prix, while the Piston Cup remains closely associated with American stock-car racing in the franchise.