Rust-eze sponsors Lightning McQueen at the start of his racing career in Pixar’s Cars.
Rust-eze is a fictional product associated with removing rust from cars. McQueen initially dislikes the brand’s image because he wants a glamorous sponsor and believes Rust-eze makes him look less sophisticated. His connection with the company begins after his unexpected journey to Radiator Springs.
Rust-eze’s founders, Rusty and Dusty Rust-eze, support McQueen during his first major racing campaign. The sponsor later becomes central to his professional identity, even though McQueen eventually receives a Dinoco offer after the climactic Piston Cup race.
Dinoco is the most common source of confusion because it is the prestigious sponsor McQueen hopes to join. Rust-eze, however, is the correct sponsor at the beginning of the first film. The fictional brand also appears throughout the franchise as a recurring sponsor and business name.