Does as the title says. Adds a version of the modern truck without any storage, just the engine and cabin with the trailers being separately made and having to be attached onto the back of the Semi-Truck.
The truck would have the same recipe as the standard modern truck but using less steel as it has no back.
The trailer would be made of some rubber wheels, axles, steel bars, 2 light bulbs and some extra mechanical components.
The Semi-Truck itself would have equal speed as the standard truck and would be slower with the trailer attached.
The trailer would have double the slots and weight capacity.