Lending a vehicle requires a mortgage registration certificate to the financial institution that lends you the loan. Because although the car is in your name, the first beneficiary is still the financial institution or bank. If there is non-repayment, the financial institution or bank has the right to hold you accountable. However, the mortgage can be released after the repayment is completed.

The specific steps for buying a car by installment payment are as follows:

1. First, you must determine the model you want to buy. Although most models can now apply for installment, there are also some models that cannot apply for installment. Therefore, before buying a car, you need to ask the 4S store in detail to see if the car you want to buy can apply for installment.

2. Then calculate the down payment. Installment still requires a certain down payment, usually no less than RMB 20 of the car price, and in some areas no less than RMB 30. Be sure to ask about this. If you want to buy a car worth 100,000 yuan, you need to pay a down payment of 20,000 or 30,000 yuan. Installment refers to the installment of the remaining car payment.

3. Another thing is to calculate the interest and monthly payment. You can directly ask the people at the 4S store to help you calculate this. Usually the car installment period is up to 2 years, and the interest rates of different banks may be slightly different, so you must ask the salesperson to calculate it clearly before signing the contract.

4. Pay attention to ask if there are any additional conditions. Although some 4S stores can apply for installments and the interest rates are relatively low, they will also have additional conditions. For example, the insurance for the new car must be full insurance in the first year, and the insurance must be purchased at the 4S store. You must ask clearly about these.

5. The last step is to provide relevant documents, sign the contract, pay the down payment, and pick up the car. This requires you to provide your ID card, driver's license, and salary bank statement. Some 4S stores may also require proof of income to prove your ability to repay. Then you need to sign the contract. After passing the review, pay the down payment, and then you can pick up the car.