What is the name of the fictional racing cup in Pixar’s Cars?

The fictional racing cup in Pixar’s Cars is the Piston Cup.

The Piston Cup is the championship trophy pursued by Lightning McQueen and the other stock-car racers. The film begins with a three-way tie in the season finale between Lightning, Chick Hicks, and The King, leading to a deciding race in California.

The competition is a fictional counterpart to American stock-car racing, especially NASCAR-style events. Its broadcast presentation, pit crews, sponsors, and oval-track format create the racing world’s central sporting structure.

The Piston Cup also appears in Cars 3, where Lightning’s struggle to remain competitive becomes the main conflict. The World Grand Prix belongs to Cars 2, so it is a separate competition rather than the cup from the original film.