I want to store a car at someone's house for monthly payments. How do I have a contract made so I have proof of this?A vehicle payment plan agreement is a contract between a buyer and seller of a vehicle that agrees to installment payments. Watch this before you finance your next car (former dealer explains how to read a purchase contract) Use Cook County Ford's payment calculator to easily estimate and compare monthly payments on your next vehicle purchase. The final hurdle you face is signing the vehicle purchase agreement; a confusing and convoluted document that we explain in detail here. If you're leasing a vehicle, most finance companies will include a buyout option as part of your lease agreement. With a parking ticket payment plan, you can pay the total amount you owe for parking ticket judgment debt in installments, rather than all at once. The ownership costs, shown in the table below, provide the monthly allowances for the lease or purchase of up to two automobiles.