In Pixar's Cars 3, Cruz Ramirez is shown winning a Piston Cup race.
Cruz begins as a high-performance trainer at the Rust-eze Racing Center, where she helps prepare Lightning McQueen for competition. Although she dreams of racing, she initially lacks confidence and believes that her role is limited to training others.
McQueen eventually recognizes Cruz's talent and encourages her to enter the Florida 500. She takes his place in the race, defeats Jackson Storm, and becomes the film's new Piston Cup competitor for the Dinoco team.
Cruz's victory is a major character turn, not simply a training result. Sally Carrera is a lawyer, Mia and Tia are fans, and Holley Shiftwell is a spy; none is presented as the female racer who wins the Piston Cup event in Cars 3.