In Pixar's Cars 3, Cruz Ramirez becomes the new racer for the Dinoco team at the film's end.
Cruz begins the movie as Lightning McQueen's trainer at the Rust-eze Racing Center. Although she has strong technical knowledge and driving ability, she lacks confidence because she was pushed toward coaching rather than a racing career.
During the final Florida 500, Lightning realizes that Cruz can compete with the new generation. He gives her his place in the race, and she defeats Jackson Storm. Dinoco then signs Cruz, while Lightning remains involved as her mentor and returns to a role connected with racing and coaching.
This ending is sometimes misremembered as Lightning retiring completely or Cruz merely winning a single race. The film specifically establishes Cruz as Dinoco's new racer, with Lightning helping guide her career.