Lightning McQueen helps The King in the final race of Pixar's Cars.
At the Piston Cup finale, Lightning is involved in a three-way contest with Chick Hicks and Strip Weathers, known as The King. After Chick causes The King to crash, Lightning stops short of taking an uncontested victory and returns to help the veteran racer reach the finish.
Lightning's decision costs him the championship but earns him respect. Chick Hicks crosses the line first and receives the trophy, while Lightning's sportsmanship becomes the emotional climax of the film. The King later retires, and Lightning becomes associated with a different kind of racing legacy.
The King is voiced by Richard Petty, a real-life NASCAR legend. This is why some viewers may remember the character by his formal name, Strip Weathers, rather than his racing nickname. Both names identify the same racer, but The King is the canonical short answer to this question.