Doc Hudson runs the Radiator Springs medical clinic in Pixar’s Cars.
Doc is also revealed to be the Fabulous Hudson Hornet, a former racing champion who won three Piston Cup championships. His racing career ended after a serious crash and a period of being forgotten by the racing world.
In Radiator Springs, Doc serves as the town’s physician and judge. He initially resents McQueen’s careless attitude, but gradually becomes his mentor and helps him understand humility and teamwork.
Doc is modeled on the real Hudson Hornet, a Hudson automobile produced in the early 1950s. Paul Newman voiced Doc in Cars, one of the actor’s final major film voice performances.