This car purchase agreement template is a standard agreement made completely customizable for your individual needs. A master purchase agreement is a legally binding contract between buyer and seller, and typically relates to buying and selling goods rather than services.A vehicle sales agreement is a lawful arrangement summarizing the terms and conditions of a vehicle sale between a customer and a seller. 2. Odometer Declaration. An Arizona motor vehicle bill of sale is part of the vehicle registration process. You can use our free template to create your document. This Master Sales Agreement (the "Agreement") is entered into between the buyer listed on the applicable Purchase Order ("Buyer") and Calimetrix, LLC. Is it safer to give him a purchase agreement rather than the bill of sale since the car has not been sold? Current Statewide Term Contracts can be found on this page. Visit our store to purchase Financial Peace University.