Both parties to the loan car purchase should sign a mortgage contract. If there is no mortgage contract, it is necessary to use the motor vehicle registration certificate for mortgage registration.

The process of buying a car through mortgage.

1. Lead customers to choose cars at the bank's special dealers and sign car purchase agreements or contracts;

2. The borrower applies to the loan bank for personal automobile mortgage;

3. Sign the contract with the consent of the investigation;

4. Go through the formalities of notarization and mortgage of automobiles;

5. Lenders (banks) handle loans;

6. After the loan is paid off, the lender (bank) cancels the pledge certificate and returns it to the customer.

According to the law, it can be known that both parties should sign a mortgage contract. If there is no mortgage contract and it is impossible to prove the borrowing behavior of both parties, it is necessary to apply for mortgage registration with a motor vehicle registration certificate.