In exchange for the Vehicle, the Buyer will pay Seller the total purchase price of the. This is a tutorial on the California residential purchase agreement.You'll need to sign the car purchase agreement (or dealer bill of sale), the title, an odometer statement, and sometimes a damage disclosure statement. It contains crucial details such as the vehicle's description, purchase price, and any warranties or terms of sale. Information you can expect to fill out includes the car's VIN, make, and model, the name and permanent address of each party involved, and the sales amount.