Towed motor vehicles (Repealed)

(a) If two fully equipped and properly registered motor vehicles are hooked together so that one is attached to the rear of the other and they are both propelled on the highways solely by means of the motor of the leading vehicle, the vehicle in the rear is a "towed motor vehicle" and does not become a trailer by reason of its being towed and is not subject to other laws relative to trailers. (b) If the motor vehicle being towed is attached to the towing vehicle by means of a rope, chain or other flexible device, there shall be an operator in the towed vehicle. If the attachment is by means of a standard, safe, rigid tow bar so that the operator of the towing vehicle has reasonably safe control of the towed vehicle, no operator is required in the vehicle being towed.