In Pixar's Cars, the legendary racer who becomes a doctor in Radiator Springs is Doc Hudson.
Doc Hudson is a 1951 Hudson Hornet and serves as Radiator Springs' local physician. He is also the town's judge and once had a celebrated racing career under the name Hudson Hornet. His past is central to the film's lesson about pride, disappointment, and second chances.
Doc won three Piston Cups before a serious crash ended his racing career. He felt forgotten when the racing world moved on, so he rejected McQueen's early enthusiasm for competition. As McQueen learns more about Doc, the two develop a mentor-and-student relationship.
Paul Newman provided Doc Hudson's voice in Cars. The character's design draws on the real Hudson Hornet, a car famous for its success in early stock-car racing. Doc is therefore both a fictional town doctor and a reference to an important vehicle in American racing history.