Vehicle EconomicsPaid-Off Car vs New Car
No payment on your current car is a real advantage. Does it outweigh what a new car would actually cost once financing and depreciation are counted?
Why this comes up
A car with no loan feels free, but it still depreciates, still needs fuel, insurance, maintenance, and eventually repairs. A new car swaps that repair risk for a real financing cost and a steeper depreciation curve in its early years. This engine puts both sides on the same footing so "no payment" gets compared to what it actually is, not what it feels like.
How we calculated this
The paid-off side sums depreciation, fuel or energy, insurance, maintenance, and repairs over your horizon, with zero financing interest. The new car side amortizes a real loan from price, down payment, APR, and term, nets it against the car's value at your horizon, adds fees, then layers on its own operating costs. We also solve the repair-cost ceiling: how high the paid-off car's annual repairs would need to climb before the new car wins.
Worked example, using this page's own defaults: the paid-off car costs $27,200 over 4 years. The new car nets $38,543. Keeping the paid-off car wins by $11,343, and its repair budget would need to climb to roughly $3,836 a year before the new car became cheaper.
What this means
- Compare your actual annual repair spending to the ceiling, not to a car payment: a paid-off car well under its ceiling is a straightforward "keep it," even if repairs feel expensive in the moment.
- A new car's depreciation and financing cost are real numbers, not a free upgrade; they typically dominate a new car's total cost more than fuel or insurance differences do.
- If your repair spending is already near the ceiling, that is the point to get real replacement quotes rather than guessing.
Limitations
This model only knows the dollar figures you enter; it cannot judge the reliability risk of an aging paid-off car or the inconvenience of an unplanned repair. Weigh those separately. See Methodology.
Methodology
This engine combines Vehicle Economics' ownership total cost model, real amortization for the new car, and a break-even search for the repair-cost ceiling. See Methodology for the full detail.