Use this car purchase agreement template to customize the financing information for your car along with other required details. 2. Odometer Declaration.A vehicle purchase agreement or vehicle contract is very important. Here are the templates that you can download and print. This Motor Vehicle Purchase Agreement outlines the details required for buying a vehicle. State the date of the sale and the purchase price. Describe the method of payment for the purchase—cash, personal check, cashier's check, money order, etc. A confusing and convoluted document that outlines the selling price, fees, taxes, your trade in, and more. A Car Purchase Agreement Template is a document used to outline the terms and conditions of the sale of a vehicle between a buyer and a seller.