In Pixar's Cars, what trophy does the season-ending race determine?

The season-ending race in Pixar’s Cars determines the winner of the Piston Cup.

The Piston Cup is the film’s fictional championship trophy and the main prize sought by Lightning McQueen, Chick Hicks, and The King. Because the three racers are tied in points, the championship requires an unusual tie-breaking race at the Los Angeles International Speedway.

The final race becomes a defining moment for McQueen. He gives up a certain victory to help The King after Chick Hicks causes a crash, sacrificing the championship result to show sportsmanship. Chick ultimately wins the race, but McQueen earns the respect of the racing community.

The Piston Cup is a fictional competition inspired by American stock-car racing. It should not be confused with the World Grand Prix in Cars 2 or the Florida 500, the major race featured in Cars 3.