In Pixar’s Cars, what is the name of the rookie racer’s sponsor?

Rust-eze is Lightning McQueen’s sponsor in Pixar’s Cars.

Rust-eze is a fictional medicated bumper ointment company whose branding appears on Lightning’s racing livery. The sponsor’s unusual product becomes an important part of the story because Lightning initially wants to leave Rust-eze behind and move to the more prestigious Dinoco team.

Dinoco is not Lightning’s original sponsor; it is the highly desirable team associated with The King and later with the race’s championship ambitions. The Piston Cup is the racing championship itself, not a sponsor. Octane Gain is another fictional racing brand seen in the Cars world.

Rust-eze’s founders, Rusty and Dusty Rust-eze, ultimately help Lightning understand the value of loyalty. The brand therefore functions as both a recurring joke and a symbol of the relationships that support him before he becomes a champion.