Final answer:
The legal document that shows ownership of a motor vehicle is known as a vehicle title, and it includes details like the owner's name and the vehicle's VIN.
Step-by-step explanation:
The legal document showing ownership of a motor vehicle is called a vehicle title or simply a title. This document is issued by a government department related to motor vehicles, such as the Department of Motor Vehicles (DMV) in the United States.
The vehicle title is a critical document when buying, selling, or transferring ownership of a vehicle and ensures the legality of the ownership transfer. It includes important details such as the owner's name, the vehicle identification number (VIN), and possibly information about any liens on the vehicle. It's important to keep this document safe since it proves that you legally own the vehicle.