Trucks are classified into mini trucks, light trucks, medium trucks, heavy trucks, and super heavy trucks according to the tonnage.
Mini truck: The total mass is less than 1.8 tons.
Light truck: The total mass is 1.8-6 tons.
Medium truck: The total mass is 6-14 tons.
Heavy trucks: total mass is 14-100 tons.
Super heavy trucks: total mass of more than 100 tons.
Models: flat car, dump truck, tractor, box car, semi-trailer, etc.
Drive form: 4*2, 4*4, 6*2, 6*4, 6*6, 8*4, 8*6, etc.
