A Pennsylvania vehicle bill of sale is a legal document formalizing the sale and purchase of a motor vehicle between a buyer and seller. Top-rated car sale agreement templates.Easy to use, fill out, and sign. This document terms as the source for defining all the terms and conditions that are required while setting up a sale and purchase of a car. A bill of sale is recommended if you're buying a motor vehicle, boat, or livestock. The Pennsylvania DMV bill of sale for a motor vehicle, trailer, or boat is a paper account of the essential components surrounding the transaction of a vehicle. See our free, printable Pennsylvania Vehicle Bill of Sale below. It's available in both PDF and Word formats. A Pennsylvania bill of sale documents the transfer of ownership of a motor vehicle, boat, gun, or other valuable asset. These details may include the vehicle's make, model, year, color, and vehicle identification number or VIN.