Haulers

The trailers they use are not just for transporting cars, there also a shop on wheels.  They have everything you need to work on a race car.  There is usually two levels to a hauler, below is all of the main tools and parts, then the upper level will have 2-3 extra cars in case one is to get in a wreck. Each car is in a different stage of readiness.  They both won’t have top wings and maybe not even an engine, but in the lower level they have spare engines ready to crank out them ponies.