|Monster Truck Mayhem Races|
Monster Truck Mayhem Races are events in Cars: Race-O-Rama.
Monster Truck Mayhem Races are played as monster trucks. Each race is three laps long. In Story Mode, the player always plays as Monster McQueen while the opponents are Monster Mater, Sulley, Count Spatula, the Crippler and Ginormous. Count Spatula and Ginormous do not appear on the PlayStation 2 version of the game. Players can also play as Monster Mater or Sulley in Arcade Mode.
|Monster Truck Mayhem 1||Rustbucket Stadium||Hudson Student Run||No||This race is on the same track as Smash Up 3, but in reverse.|
|Monster Truck Mayhem 2||Rustbucket Stadium||Candice's Glam Tour||Smash Up 2||Yes||This race is on the same track as Bubba's Bucket Bash.|
|Monster Truck Mayhem 3||Radiator Springs||Match Up||Tokyo Mater||Yes||This race takes place in Sarge's Boot Camp. It is also the only Monster Truck Race in the game to feature a cut-scene in Story Mode.|
|Monster Truck Mayhem 4||Autovia||Off Road Race 1||No||This is the only Monster Truck Race in the game to take place outside of Radiator Springs.|
|Monster Truck Mayhem 5||Ornament Valley||Hudson Student Run||No|
- This is the only event type in Cars: Race-O-Rama that does not have eight racers, instead having only six, since there are only six monster trucks.
- This is the only occasion in the THQ Cars games in which monster trucks can spin around and drive backwards, as well as have top speeds lower than 180 mph.