The race held in Florida at the climax of Pixar’s Cars 3 is the Florida 500.
The Florida 500 is the decisive event in Lightning McQueen’s attempt to prove that he can still compete with the younger, technologically advanced Jackson Storm. After an early setback, Lightning changes his approach and relies on lessons connected to Doc Hudson and the older generation of racers.
During the race, Lightning realizes that Cruz Ramirez has the speed and ability to compete. He gives her his place, and Cruz enters the event wearing Lightning’s racing number. She defeats Jackson Storm and wins the Florida 500, while Lightning accepts a new role as mentor and teammate.
The Florida 500 is fictional, although its presentation draws on real American stock-car racing traditions. It should not be confused with the Piston Cup, which is the broader fictional championship series, or the Dinoco sponsorship associated with several major racers.