Holstein Heifer

Holstein Heifer is a fictional German motor company which makes tractors. In the Cars universe, the tractors are considered as cows.

Models

The German name "Holstein" means "dwellers in the wood" or "hill-sitters".
- "Heifer" is the German word for a cow.
The Tractors are based on the real-life 1955 International Harvester Farmall 400.
In Car Finder Game, the Tractor models are listed as "Holstein Heifer Chewall Diesel Powered". However, in Meet the Cars, they are renamed as "Axel Chompers, 4-Cylinder, Diesel-Powered, Easily Frightened Transmission".
- Despite this, the Holstein Heifer Chewall logo is still present on their sides in all of their subsequent appearances.
The name "Chewall" is likely a parody of Farmall, a brand of tractors and agricultural equipment.
In Cars 3, there is a scene were Cruz Ramirez imagines several Next-Gen racers as tractors while completing in the Florida 500. These include - Bumper Save Racing Tractor, Carbon Cyber Racing Tractor, Clutch Aid Racing Tractor, Combustr Racing Tractor, Easy Idle Racing Tractor, Faux Wheel Drive Racing Tractor, Gask-its Racing Tractor, Gasprin Racing Tractor, Mood Springs Racing Tractor, No Stall Racing Tractor, Rev-N-Go Racing Tractor, RPM Racing Tractor, Shiny Wax Racing Tractor, Spare Mint Racing Tractor, Sputter Stop Racing Tractor, SynerG Racing Tractor, Tank Coat Racing Tractor, and View Zeen Racing Tractor.