In Pixar’s Cars 3, Cruz Ramirez wins the Florida 500 after taking over Lightning McQueen’s final competition.
Lightning initially returns to racing to challenge Jackson Storm, a younger and technologically advanced competitor. After a difficult season and a training accident, he begins coaching Cruz, who is initially presented as a trainer rather than a top-level racer.
At the Florida 500, Lightning starts the race but changes strategy when Cruz gains confidence and joins the competition. He helps her take his place, and Cruz defeats Jackson Storm to win the event. The result gives the film its central passing-of-the-torch moment.
The Florida 500 is not the same as the Piston Cup itself. The Piston Cup is the championship trophy and competition associated with the series, while the Florida 500 is a specific race. Cruz’s victory marks her emergence as a professional racer.