Find out when a bill of sale is required in North Carolina, and how to use one if you purchase a vehicle from a private party. A North Carolina motor vehicle bill of sale is legal proof that the purchase and sale of a vehicle has occurred.This form below is designed for use on upon the sale of a motor vehicle or automobile. 1. Gather all necessary vehicle information including make, model, and VIN. Seal vehicle deals securely. Use our free template to create a bill of sale with a promissory note for automobiles. The documentation and forms required for titling a vehicle are based on the situation involving the vehicle, as described in the table below. What should you include in your vehicle bill of sale? The form should include the sales price, the parties' names, and the date of sale.