In exchange for the Vehicle, the Buyer will pay Seller the total purchase price of the. What to include in a vehicle bill of sale.Below, we've outlined the steps and forms required for how to sell a car in the state of California so you can sell your car quickly for the most cash. When buying a vehicle or equipment for your business, use this Vehicle and Equipment Purchase Agreement to protect yourself from unwarranted liabilities. All you need is the title. With our free Sales Agreement form, you'll be ready to print or download your contract in no time. You'll need to sign a residential purchase agreement, make an offer, possibly put down a deposit, conduct inspections and close the sale.