<prompt> Human: Im going to buy a used car, a few year old, in the 12-14K range. I have done my research on type of car and price it should be worth. Im already familiar with how a interest percentage is found too. What should I expect walking back to the real salesmans office? What should I want to add on, what should I say no to?  <response>: You should get preapproved by another lender, such as your own bank or credit union. Then you can compare to the rate the dealership can offer.Say no to everything in finance. 