Doc Hudson is a 1951 Hudson Hornet, a seemingly quiet country doctor who runs the local "medical clinic" (mechanic shop) in Radiator Springs. Doc ends up teaching McQueen lessons he can apply both on and off the track.
Radiator Springs’ medical man (in other words, the town mechanic), this 1951 Hudson Hornet
is a gruff and wise old soul who teaches Lightning McQueen some true life lessons.
Former champion Doc Hudson's plate is "51HHMD," which is the real license plate of the original 1951 Fabulous Hudson Hornet and could be mistaken to mean "1951 Hudson Hornet, M.D." Doc is not only the town doctor, but also the town judge and he has a few surprises under his hood.