The new-vs-used question usually gets answered with a gut feeling. It shouldn't be — it's a math problem with a clear structure, even if the exact numbers change with the market. Here's what actually separates the two.
A new car typically loses a large chunk of its value in the first year, and keeps depreciating steadily for the next few years after that. A used car — especially one that's two to four years old — has already absorbed the steepest part of that drop. You're buying after the worst of it has already happened to someone else.
New cars come with a manufacturer's warranty that covers most repairs for the first few years. A used car may still have some of that original warranty left, or none at all, depending on its age and mileage. Before buying used, check exactly what's still covered — and factor a repair fund into your budget if the warranty has expired.
Lenders generally view new cars as lower risk, so new-car loans tend to carry lower interest rates than used-car loans. That gap can shrink the price advantage of buying used once you compare total loan cost, not just sticker price — so always compare the full financed cost, not just the purchase price.
Newer, more expensive vehicles usually cost more to insure and register. If you're stretching your budget for a new car, get an insurance quote before you sign anything — it can shift the monthly math more than people expect.