The credit card purchase installment of CCB is to buy a car with a separate credit card quota and automatically installment. Credit cards will be swiped according to the total amount, the number and amount of repayment in installments (principal+handling fee), and some models will also enjoy free handling fee treatment.
Generally, the credit card limit is less than the car purchase amount. After all, there are very few high-end credit cards, and temporary credit lines generally cannot participate in staging (not in industry, construction or agriculture).