In Pixar's Cars, Chick Hicks races with the number 86.
Chick is Lightning McQueen's principal rival in the first film's Piston Cup season. He drives a green stock car and is known for aggressive tactics, including bumping competitors. His behavior contrasts with the sportsmanship represented by The King and, eventually, by McQueen.
The number 86 is displayed prominently on Chick's body and helps distinguish him from the other leading racers. Lightning uses number 95, while The King uses 43. Doc Hudson's former racing identity is associated with number 51, so these numbers carry character history as well as visual identification.
Chick wins the Piston Cup tie-breaker after McQueen stops to help The King finish. However, Chick is booed by the crowd, while McQueen earns respect for refusing to accept victory through another racer's misfortune. The result emphasizes the film's theme that winning is not the only measure of success.