County of Harris. §. It contains information about the buyer and the seller, a description of the vehicle being sold, and information about the transaction, such as price.Motor Vehicle (DMV) Bill of Sale Form – Conveys the purchase and transfer of an automobile. How to fill out the Texas Vehicle Bill of Sale Form? This transaction is made in the County of. ,. All "Component Parts" listed on this form must be from the same vehicle and sold to an individual purchaser. Motor Vehicle Bill of Sale Relays the details of a transaction involving a used vehicle. Download: PDF, Word (. The Houston Vehicle Bill of Sale is a form used to officially transfer ownership of a vehicle or trailer from one party to another. Filling out this Texas General Bill of Sale is straightforward.