In Pixar's Cars, which real NASCAR driver inspired the character The King?

In Pixar's Cars, Richard Petty inspired the character The King, Strip Weathers.

The King is a veteran Piston Cup champion whose formal name is Strip Weathers. He is voiced by Richard Petty, the real NASCAR driver, and the character's design and racing identity pay tribute to Petty's public image and career. The King drives for the Dinoco team and serves as a respected senior figure in the racing world.

The film contrasts The King's professionalism with Chick Hicks's aggressive ambition and Lightning McQueen's early arrogance. During the final race, The King suffers a crash caused by Chick's push, but Lightning chooses to help him instead of taking an easy victory. That decision is a turning point in Lightning's character development.

The King is not based on Dale Earnhardt, despite the character's status as an older stock-car legend. Petty's involvement is especially direct because he supplied the voice. His wife, Lynda Petty, voices The King's wife, Mrs. The King.