Vehicle Identification Number. An Arizona motor vehicle bill of sale is part of the vehicle registration process.You can use our free template to create your document. Request a title and registration motor vehicle record online. Check Motor Vehicle Title Status. An Arizona motor vehicle bill of sale (ADOT Form 48-2004) is a legal document that transfers ownership of a motor vehicle from a seller to the buyer. The motor vehicle seller must insert the sales price, nonresident state and Arizona county tax rates and complete all mathematical calculations.