Sheriff (Cars)

This is a list of characters from the Pixar franchise Cars:

Lightning McQueen, often referred to as "McQueen", is the protagonist in Cars and Cars 3. He is voiced by Owen Wilson and he is modeled after a Dodge Viper GTS sports car crossed with a NASCAR Stock Car.

Mack (voiced by John Ratzenberger) is a 1985 Mack Super-Liner bearing license plate "RUSTEZ3". A dedicated member of the Rust-eze Medicated Bumper Ointment Team, having the role of McQueen's transport, Mack pulls Lightning McQueen's trailer to his races. Lightning's one loyal team mate after his entire pit crew resigns in protest at the end of the season decider, he inadvertently sets up the predicament suffered by Lightning McQueen throughout the movie. The grill on him suggests a nose and his top cover (with the Rusteze logo) suggests a baseball-style cap.

McQueen exhorts Mack to drive through the night to his tiebreaker race with Chick Hicks and The King in Los Angeles, despite federal DOT regulations which legally grant Mack ten hours daily of much-needed off-duty rest alongside "all those sleeping trucks" at the last truck stop on I-40. Lightning hopes to reach the venue first and to hang out with the Dinoco team. As a result, Mack falls asleep and, distracted by the Delinquent Road Hazards (who attempt to push him off the road to the shoulder), loses Lightning. Mack arrives in Radiator Springs after Doc reveals Lightning's location and is both very relieved ("Thank the manufacturer, you're alive!") and apologetic ("I'm so sorry I lost you, boss. I'll make it up to you..."). Lightning, who is glad to see him, forgives him.

Mack acts as Lightning's pit crew for the big race (since he has none) and worriedly asks if he's alright when he spins out, just before Doc and the others show up to help. During the closing credits, Mack views automotive versions of previous Pixar films (such as Toy Car Story and Monster Trucks, Inc.) at a restored 1950s drive-in cinema. Commenting on other characters played by John Ratzenberger (including Hamm the piggy truck and the Abominable Snowplow), he eagerly applauds each of them until he realizes they're all played by the same actor, then demands to know "what kind of cut-rate production is this?!"

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Wikipedia