In Pixar's Cars 3, Cruz Ramirez competes in the final race using racing number 95.
Cruz begins the film as Lightning McQueen's trainer at the Rust-eze Racing Center, but her role changes when she demonstrates that she has the speed and determination to race herself. Lightning helps her overcome the belief that she does not belong in top-level competition.
For the Florida International Super Speedway finale, Cruz takes Lightning's place in the race and uses his familiar number 95 and racing colors. The choice connects her new career to the mentorship and friendship they develop during the film.
Number 95 is strongly associated with Lightning McQueen throughout the Cars series. Cruz's use of it in the final race is therefore a deliberate story detail, not her original identity as a trainer. Her own racing success also continues the film's theme of passing knowledge between generations.