What is Pixar’s Cars franchise’s fictional championship called?

The fictional championship in Pixar’s Cars franchise is called the Piston Cup.

The Piston Cup is the main stock-car racing competition in the first film and a recurring part of the franchise’s racing mythology. Lightning McQueen enters the championship as a rookie, while established racers such as The King and Chick Hicks represent different generations and personalities within the sport.

The name resembles real motorsport terminology, especially the use of “cup” for championship series and the piston as a familiar engine component. The fictional competition is not the same as the World Grand Prix, which is the international race series introduced in Cars 2.

The Piston Cup also appears in Cars 3, where McQueen struggles against younger, technologically advanced racers. The championship’s sponsor and presentation change across the films, but the Piston Cup remains the franchise’s recognizable domestic racing title.