Mater is the friendly tow truck in Pixar's Cars.
Mater lives in Radiator Springs and quickly becomes Lightning McQueen's closest friend. He is open, enthusiastic, and proud of his local knowledge, even though he lacks McQueen's polished appearance and racing experience. His humor and loyalty help McQueen connect with the town's residents.
The name “Mater” is a shortened pronunciation of “tomater,” reflecting the character's playful rural speech. His full design is based on an old tow truck, and his rusty appearance is an important part of his comic personality. Despite his eccentric behavior, Mater is perceptive and consistently supportive.
Larry the Cable Guy voices Mater in the Cars films. Mater also becomes central to Cars 2, where his misunderstanding of events draws him into an international spy adventure. That sequel expands his role but keeps the same friendship with McQueen established in the first film.