Doc Hudson

Doc Hudson (also known as The Fabulous Hudson Hornet or simply Doc) is a character in Cars.

Doc is a car of few words but many talents. He not only serves as the town judge, he's also Radiator Springs' resident doctor. Doc is respected and admired by the townsfolk for the way he looks out for their health and tends to their aches and pains. No one knows too much about Doc before he came to town. He keeps his private life private. But if you've got a bad spark plug or a rattle in your engine, his door is always open.

Cars
He was once one of the most famous racecars in history; he won three Piston Cups, and still holds the record for most wins in a single season. However, it all changed for Doc when he was involved in a terrible crash during the final lap of the 1954 Piston Cup championship race, which saw him put out for the season. Upon his return, he was received with a complete absence of fanfare and told that he was a has-been who had been passed up for the next rookie in line. He kept a newspaper article on the career-ending crash as a reminder never to return to the life that nearly killed him.

Jaded by the racing scene, he left that world, apparently taking out time to study medicine. The famous #51 disappeared into obscurity, leaving many wondering where he had gone. He instead opted for a simple navy blue paint job and the life of a physician in the tiny town of Radiator Springs, the "shining Gemstone" of the Mother Road - Route 66. He runs Doc's Clinic as a "doctor of internal combustion". As times changed and the town got bypassed in favor of Interstate 40, Doc stayed on, even when the population had dwindled to a meager dozen or so residents. He is respected, well-loved, and serves not only as the town's physician, but as its judge as well. However, nobody in the town had any idea of his past as a racer; he was just an ordinary Hudson Hornet to them.

Upon meeting Lightning McQueen, Doc saw far too much of his past in the rookie. He was less than happy when Lightning discovers his past. After Lightning finished fixing the road he damaged and decided to stay for a while, Doc was unable to bear having him around any longer and called the news and press to immediately take him away to the Piston Cup, declaring that it is best for everyone. But seeing how disheartened everyone was by his unplanned departure, Doc realized that Lightning had become more important to them than he thought. He eventually admits the truth to everyone about his Racecar days and he took back his old #51 colors to become Lightning's pit crew chief, bringing nearly the entire town (except Sally, Red, and Lizzie -- who watch the race on TV) to the Piston Cup to support Lightning as his pit crew (and in an ironic twist of fate, finally received that long awaited fanfare for his return).

By the end of the film, Doc opts to keep his racing colors, and becomes a trainer as well as a friend to Lightning. Just like Lightning, Doc learned some lessons: friendship, promises, how greed affects others, and that secrets can't be kept forever.

Mater and the Ghostlight
Doc appears in the short film, where he scares Mater into believing in a monster called the Screamin' Banshee, which actually ends up existing.

Cars 2
Doc died prior to the events in Cars 2, but posters of him are still shown in his museum. In memory of him, the Piston Cup was renamed the Hudson Hornet Memorial Piston Cup, and gets a new logo with an image of the Hudson Hornet and the words "Hudson Hornet" above it. It appears prominently on Lightning McQueen's hood. Doc’s office was converted into the Hudson Hornet Racing Museum.

When Lightning was showing Mater his new Piston Cup, they mentioned him a few times. Also, during the race in Tokyo, on the dirt section, Mater told Lightning to do what Doc has taught him (turn right to go left). Which he did and took the lead.

The circumstances of how Doc died are unknown.

John Lasseter was at first adamant that Paul Newman would return to voice Doc Hudson, even though he had announced his retirement from acting. After Newman's death, Lasseter said that they would see how the story goes with Doc Hudson. Story supervisor Nathan Stanton said : "we felt, after really tooling around with the idea of him being in the film and how do we properly use him, it just felt right that we should have his character have passed away also [as Paul Newman]." John Lasseter said that he realized "Doc Hudson was Paul Newman. The character was written after listening to him talk about his passion for racing." and that "We pay homage to Doc Hudson, which is paying homage to Paul Newman."

Trivia

 * A blue Hudson Hornet can be seen parked on the street to the left of the screen at the 1:40:31 mark in The Incredibles. Even though Cars was released after The Incredibles, development of Cars was well under way, and this is most likely a reference to Doc Hudson.
 * Doc Hudson is a 1951 Hudson Hornet.
 * The Hudson Hornet was one of the first cars used by drivers in the begining of NASCAR.

From Cars

 * "Hey, was that floating like a Cadillac, or was that stinging like a beemer? I'm confused. You drive like you fix roads - lousy! Have fun fishing, Mater."
 * "All right, I wanna know who's responsible for wrecking my town, Sheriff. I want his hood on a platter! I'm gonna put him in jail 'til he rots. No, check that... I'm gonna put him in jail 'til the jail rots on top of him, then I'm gonna move him to a new jail and let that jail rot. I'm -... Throw him outta here, Sheriff! I want him out of my courtroom, I want him out of our town! Case dismissed!"
 * "They [his sponsors] quit on me. When I finally got put together, I went back expecting a big welcome. You know what they said? 'You're history.' Moved on to the next rookie standing in line. There was a lot left in me. I never got a chance to show 'em. I keep that to remind me never to go back. I just never expected that that world would... would find me here."
 * "I knew you couldn't drive. I didn't think you couldn't read."
 * "You look! All I see is a bunch of empty cups."
 * "These are good folk around here who care about one another. I don't want them depending on someone they can't count on."
 * "I'll put it simple: if you're going hard enough left, you'll find yourself turning right."

When Lightning was showing Mater his new Piston Cup

 * Mater: Wow! I cannot believe that they renamed the Piston Cup after our very own Doc Hudson!


 * Lightning McQueen﻿: I know Doc said that these were old cups, but having someone else win it just didn't feel right, you know?


 * Mater: Well, Doc would've been real proud of you, that's for sure.

When Lightning was about to take the dirt turn

 * Mater: McQueen, it's time to make your move! Get on the outside, and show 'em what Doc done taught you!


 * Lightning McQueen: 10-4, Mater.