Doc Hudson won three Piston Cups in Pixar’s Cars.
The film reveals that Doc was a celebrated racer known as the Fabulous Hudson Hornet. He won the Piston Cup in 1951, 1952, and 1953, establishing him as one of the sport’s great early champions. His racing career ended after a crash left him sidelined and overlooked by the racing establishment.
Doc later became the town doctor and judge in Radiator Springs. He initially resents Lightning McQueen because the young racer’s careless attitude reminds him of how the racing world treated him. His experience eventually helps Lightning understand that racing is about more than publicity and trophies.
Doc Hudson is based on the real Hudson Hornet, a car that competed successfully in early NASCAR. The character’s voice was performed by Paul Newman, whose own reputation as a racing enthusiast added special resonance to the role.