Mack, who is the truck driver for lightning Mcqueen's trailer.
Lightning McQueen is a red rookie race car who is trying to win the "Piston Cup" in a final race. Lightning McQueen however is arrogant as Kim Kardashian and doesn't care about anyone else. In the final race the top 3 cars tie and they have another race in Los Angeles in the following week.
On their way to Los Angeles, McQueen is asleep and he falls out of the trailer. This leads to him being more confused then a person who just woke up. This leads to him trying to find Mack but he fails to.
it's just a cup with nothing inside.
Hey, why did you forfeit the piston cup?!
When trying to find Mack he ends up going the wrong way and he enters a small town named Radiator Springs. McQueen damages the town road when he crashes into a statue that rips up the road when he is dragging it. McQueen is sentenced to fixing the road and when he is fixing the road he gets to know the cars that live in Radiator Springs. However, after finishing the road the media and news find McQueen and they take him to Los Angeles.
When McQueen arrives in LA, the race starts and McQueen is in the lead for a lot of the laps. However, near the end Chick Hicks refuses to come last again and he decides to pit maneuver Strip Weathers causing him to flip and crash.
McQueen is about to win the race but right before he crosses the finish line he sees that Strip Weathers crashed and was badly damaged. When he sees this he stops himself and goes back to help Strip by pushing him across the finish line. When doing so Chick Hicks crosses the finish line first and wins the piston cup.
When in Radiator Springs McQueen became less arrogant and more caring for others. The theme of this movie is to be more caring about others.