Doc Hudson

Doc Hudson, also known as The Fabulous Hudson Hornet, was a former dirt track racer who, prior to his death, served as the judge and doctor of Radiator Springs, as well as Lightning McQueen's mentor.

Bio
Doc Hudson is the wise, quiet country doctor who runs Radiator Springs' medical clinic. Before slowing down in Radiator Springs, Doc was a race car known as "The Fabulous Hudson Hornet".