Car buyers are facing last-minute rate increases after driving off the lot, with average U.S. car loan interest rates nearing 12%. Dealers may use tactics like spot delivery or yo-yo financing to increase rates and pad profits. Buyers can refuse, renegotiate, seek outside financing, or refinance later if necessary.

Read more at Yahoo Finance: I bought a used car with 6% interest but the dealership claims the bank pushed back and bumped it to 8%. What can I do?