Trailer means every vehicle without motive power designed for carrying property or passengers
Semitrailer means every vehicle of the trailer type so designed and used in conjunction with a
semi-trailer means any trailer designed to be coupled to a motor vehicle in such a way that part of it rests on the motor vehicle and that a substantial part of its mass and the mass of its load is borne by the motor vehicle;
Fifth wheel trailer means a vehicle that is of such size and weight as to be movable without a special highway permit, that is constructed with a raised forward section that allows a bi-level floor plan, and that is designed to be towed by a vehicle equipped with a fifth-wheel hitch ordinarily installed in the bed of a truck.
Antique trailer means every trailer or semitrailer, as defined in this section, that was actually