In Cars, Lightning McQueen was separated from Mack, his hauler. He then ended up in Radiator Springs. Doc Hudson then called Lightning's manager and Mack took him to a tie breaker race. Doc soon felt sorry, the gang came to see Lightning at the race and became his pit crew, along with Mack. He has a very minor role in Cars 2, only appearing in some scenes early in the movie. He will appear in Cars 3.
- Mack was voiced by John Ratzenburger also also voiced Hamm in Toy Story, the Underminer in The Incredibles and played Bren Derlin in Star Wars.