“Have you shopped around, or did the dealer tell you 18% is the lowest they can do?
If you haven’t done so already, compare prices at banks and credit unions, as these institutions typically offer lower rates than the dealer will.
If you have to buy a car, and this is the best rate you can find, you might have to accept the 18% interest rate. Make payments for about 12 months. By then you should have built enough credit to refinance.
Alternatively, if you have the cash, you might want to consider a cheaper vehicle until you can boost your credit score.”