a system for loading motor vehicles onto , and unloading motor vehicles from , a transporting vehicle enables motor vehicles to be supported one above the other on a frame , after which the frame with its supported motor vehicles is moved as a unit onto a transporting vehicle at a loading location . after transport of the frame and its motor vehicles from the loading location to a destination , the motor vehicles are unloaded from the transporting vehicle not as a unit but rather individually while the frame remains on the transporting vehicle .