Final answer:
The maximum length of a single motor vehicle other than a truck tractor varies depending on the jurisdiction and type of vehicle. In the United States, the federal length limit is 45 feet, but state regulations may differ.
Step-by-step explanation:
The maximum length of a single motor vehicle other than a truck tractor depends on the jurisdiction and the type of vehicle. In the United States, for example, the federal length limit for a single motor vehicle is 45 feet. However, individual states may have their own regulations that vary. It is important to check the specific regulations in your area to determine the maximum length of a single motor vehicle.