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. Library File Link. 48-2004. Purpose. 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. To draft a bill of sale for a car in Arizona, you should first enter the details about the seller and buyer, including their full names and mailing addresses. Vehicle Details: The contract should contain precise information regarding the vehicle being sold, such as its make, model, year, and VIN. When buying a vehicle or equipment for your business, use this Vehicle and Equipment Purchase Agreement to protect yourself from unwarranted liabilities.