Stars of Cars
From Disney's Hollywood Studios Wiki
 Characters Synopsis
 Lightning McQueen
Lightning McQueen is a rookie racecar whose dream is to become the first rookie to ever win the Piston Cup. Lightning's plans are put on hold when he finishes the last Piston Cup race in a 3 way tie with the King and Chick Hicks. It is decided that the three will compete in a three way race in a final race in Los Angles. However, Lightning gets lost in the small town of Radiator Springs. While stuck in Radiator Springs, Lightning meets new friends and realizes there is more to life than winning races and gaining sponsorship deals. He learns the life lessons of friendship, teamwork, selflessness, and that life is about the journey, not the destination, but he also learns racing skills like turning on dirt, and backwards driving, which he learns from Mater. He is voiced by Owen Wilson
Mater is a blue collar, brown, tow truck with a heart of gold. He isn't the smartest car around, but he is the kindest person around and is always there to lend his tow cable. Mater enjoys tractor tipping, and is the best Backwards Driver around. He is voiced by Daniel Lawrence Whitney, a.k.a. Larry the Cable Guy.
They were also featured in the Disney's Stars and Motor Cars Parade for a brief time, and one of the few characters who didn't have a car for them (since they are in fact Cars themselves).