In Pixar's Cars 3, which character defeats Jackson Storm in the final race?

Cruz Ramirez defeats Jackson Storm in the final race of Pixar's Cars 3.

Lightning McQueen begins training Cruz, a gifted but initially hesitant trainer at the Rust-eze Racing Center. When Lightning's comeback attempt reaches the Florida International Super Speedway, Cruz takes his place in the race after he is pushed aside by the team.

Cruz uses Lightning's advice and her own racing ability to challenge Jackson Storm, the leading next-generation racer. She wins the race, while Lightning returns to competition in a new role as her mentor and crew chief.

The ending is not a simple retirement for Lightning. It passes the spotlight to Cruz while allowing Lightning to continue racing selectively. This makes Cruz's victory the film's decisive competitive result and the start of her professional career.