Tractors

The Tractors are characters in the Cars franchise.

Cars
"The earliest domestication of the North American tractors can be traced back to the 1800s during the construction of the first continental railroad. Railroaders quickly discovered the tractors' ability to create level grades across even the most demanding geography. Today the native plains tractor is regarded as one of the true pioneers of the West."

"Tractors are hard workers. They enjoy what they do, plowing through the fields on a nice warm day, and then falling asleep under the moonlight. But every so often they wake up to the sound of snorting and giggling trailing off into the distance, and they find themselves lying on their backs staring up at the stars. But they don't mind. It's actually kind of nice to get to sleep lying down for a change."

Mater and the Ghostlight
In Mater and the Ghostlight, when Mater thought he was being chased by the ghostlight, he zoomed past some tractors in Frank's field, causing them to tip.

Unidentified Flying Mater
When Mater was taking Mator tractor tipping, he honked his horn and tipped a tractor. Then Mator did a louder honk that created a crop circle design and tipped all of the other tractors in the field.

Planes
According to the test footage for Planes, some tractors will appear.

Trivia

 * Tractors can be tipped when they hear horns honking or engines revving loudly. However, in Cars 2: The Video Game, they are easily tipped when you hit them.
 * Tractors make a cameo appearance in the background in the 2011 Target Commercial.
 * Tractors also appear in Cars 2: The Video Game along with Frank and you can earn the "Tractor Tipping" badge, if you tip 3 of them in any place you can find them.Tractors_Cars2.jpg
 * In Toy Story 3, a toy version of a Tractor drives behind Buzz and Sparks in Sunnyside Daycare when they meet and shake hands.
 * Tractors are the Cars world equivalent of cattle.
 * One of the Tractors is named Rusty, as Mater calls him at the scene when Lightning McQueen chases Doc.