the vehicle purchase agreement, or vehicle contract, is a contract between the seller and buyer that outlines the purchase terms. for example, if you will be financing the car, then the car sale agreement will include the terms for the loan. the purchase agreement for a vehicle also describes the vehicle. there will be an itemized list of the total price. the agreement also lays out any financing information. if you traded in a vehicle as part of the transaction, the trade-in value will be noted here. it should also clarify that the contract is for buying a car. if the seller sells the vehicle “as is” then the buyer is liable for any problems. review the information to ensure it’s correct. next, write out the date of sale and purchase price.