Does a vehicle log book mean you are the legal owner of vehicle?

A vehicle log book is not definitive proof of vehicle ownership. While a log book may indicate that you are the registered owner of the vehicle, it is not a legal document that establishes ownership. In most jurisdictions, the legal ownership of a vehicle is determined by the vehicle's title, which is issued by the appropriate government agency. The title is a legal document that identifies the vehicle and its owner(s), and it is the primary evidence of vehicle ownership.