A Pennsylvania vehicle bill of sale is a legal document formalizing the sale and purchase of a motor vehicle between a buyer and seller. Learn about bills of sale in Pennsylvania for vehicles, firearms, animals, etc.When selling a vehicle, the seller must sign and handprint their name on the proof of ownership document. The Pennsylvania bill of sale form acknowledges the transfer of possession of a piece of personal property for an agreedupon sum of money. A Pennsylvania motor vehicle bill of sale is evidence of a vehicle's transfer. Use our template to build your vehicle bill of sale. Secure your sale agreements with our customizable bill of sale template to give you clarity and protection. Learn more about creating a bill of sale. Use a Business Bill of Sale to set out the terms for the sale of a business and transfer the ownership and all assets to the buyer. A Pennsylvania motor vehicle bill of sale is a document that records the sale and transfer of ownership of a vehicle from a seller to the buyer.