Use this car purchase agreement template to customize the financing information for your car along with other required details. You can prepare an Agreement for a Joint Purchase using the form included here.Simply fill in the details of your joint purchase. A confusing and convoluted document that outlines the selling price, fees, taxes, your trade in, and more. A vehicle purchase agreement or vehicle contract is very important. Here are the templates that you can download and print. This document summarizes an agreement of sale for a vehicle between Mr. Mirza Wasiq Ali Baig and Mr. Shaikh Muhammad. I'm gonna break down all the terms and conditions so you can understand what it means and we're gonna fill that out so you can have a real-life example of it. 2. Odometer Declaration.