Clearly print or type all information, except signatures. Vehicles Purchased in a Private Sale.The Easiest Way to Add e-Signatures. A motor vehicle bill of sale is between a buyer and a seller of a car, truck, or motorcycle. It is signed as the last step in the sales process. When is a Bill of Sale Needed? Customers may use a bill of sale to transfer vehicle ownership in very limited circumstances as outlined below. Titles may be acquired at a MVC Vehicle Center. Print and complete the form you need, then return it to the address noted on the form. Type or print the name, title, and relationship that appear in the signature box.