Car dealerships are unusually good at one specific trick: negotiating around a monthly payment number instead of the total price. 'What payment are you comfortable with?' sounds like a helpful question, but it opens the door to hitting that number by stretching the term or raising the price, both of which cost you more overall while looking the same on the sticker you agreed to.
How stretching the term hides cost
A longer loan term lowers the monthly payment on the same amount borrowed — but total interest rises, sometimes considerably. A 25,000 loan at 7% costs noticeably less in total interest over 4 years than the identical loan stretched to 6 or 7 years, even though the longer term feels more 'affordable' month to month.
Longer terms also increase the risk of being 'underwater' — owing more than the car is worth — for years, since cars depreciate faster than a long loan pays down principal. That matters if you need to sell or trade in before the loan is finished.
Negotiate the price, then the loan, separately
The two decisions — what you pay for the car, and how you finance it — should be handled as separate conversations, not blended into one 'payment' negotiation. Agree on the out-the-door price first. Only then discuss loan term and rate, and run the numbers yourself through our loan calculator rather than accepting the dealer's monthly figure at face value.
It's also worth getting pre-approved by a bank or credit union before visiting a dealer. Even if you end up financing through the dealership, having an outside offer in hand tells you immediately whether their rate is competitive.