Bill of Sale ; Library File Link. The motor vehicle seller must insert the sales price, nonresident state and Arizona county tax rates and complete all mathematical calculations.If you have a written contract, the seller must live up to the promises stated in the contract. Pima County Community College District ("College") is seeking proposals from qualified firms to provide Chartered Ground Transportation Services. 1 If you're financing your purchase ; 3 The actual vehicle purchase agreement ; 4 Buyer's trade in certification ; 5 Warranty disclaimer and documentary fee notice. Gov to access many MVD services online. Use this car purchase agreement template to customize the financing information for your car along with other required details.