In Pixar's Cars, what type of vehicle is Mater primarily based on?

Mater is primarily based on a 1951 International Harvester boom truck in Pixar's Cars.

Mater is Radiator Springs' rusty tow-truck character and Lightning McQueen's closest friend. His design combines features associated with a 1951 International Harvester boom truck, although visual references from other older American trucks also influenced his appearance. That mixture is why descriptions sometimes identify additional inspirations rather than a single exact production vehicle.

The character's name is a shortened form of “tomato,” reflecting the rural Southern-style speech used in the film. Mater operates the local towing business and spends much of his time helping vehicles around Radiator Springs. His apparently simple personality hides a strong memory and considerable practical knowledge.

Mater is voiced by Larry the Cable Guy, whose performance helped define the character's distinctive accent and comic timing. He appears in all three Cars feature films and stars in the animated series Cars on the Road. Mater's design is therefore both a specific truck reference and a stylized Pixar character rather than a factory-perfect replica.