In Pixar's Cars, Doc Hudson sentences Lightning McQueen to repair the road. Doc serves as Radiator Springs' judge and has authority over the town's legal proceedings.
Lightning damages the main road while trying to escape Radiator Springs after accidentally arriving there. The town's residents want the road repaired, and Doc orders Lightning to complete the work as punishment. This sentence keeps the arrogant rookie racer in town long enough to meet its residents and learn its history.
Doc initially appears to be an elderly local doctor, but the film later reveals that he was once the Fabulous Hudson Hornet, a celebrated racing champion. His past explains both his knowledge of racing and his distrust of the sport's modern celebrity culture. Paul Newman provided Doc's voice.