In Pixar's Cars, Lightning McQueen's racing number is 95.
The number appears prominently on McQueen's body and is used throughout the film to identify him during Piston Cup races. It is also displayed on merchandise and promotional artwork connected with the character.
The number 95 is widely associated with Pixar history because the studio released Toy Story in 1995, its first feature film. This connection is a design detail rather than a plot point, but it helps explain why the number became recognizable among Pixar fans.
McQueen's number should not be confused with the numbers of other major Cars racers, such as The King at 43 and Chick Hicks at 86.