When should you sell your car? Start with its value curve.
A dealer’s perspective on depreciation, mileage and holding costs, without pretending every car follows the same schedule.
The number you paid is not the number a buyer sees
In my original note, I used a value curve to explain a familiar conversation: a seller remembers the total paid at the dealership, while a buyer is evaluating the car today. Those numbers answer different questions. Your original bill can include taxes, fees and optional products in addition to the vehicle. Do not assume every dollar of that total will be recovered on resale.
Age and mileage need to be considered together
Two cars of the same age can have very different mileage, condition and history. A ten-year-old car driven occasionally is a different proposition from one used heavily every day. The useful question is not simply how old it is, but what comparable vehicles and current purchase offers say about this particular car.
A curve is a way to think, not a price forecast
My illustration showed a steep early drop followed by a gentler slope. That is a useful starting point for discussing ownership costs, but it is not a universal schedule. Model, trim, supply, demand, condition and market changes can alter the path. There is no fixed percentage that every car loses as it leaves the dealership, and no exact year when every car should be sold.
Look at the next period of ownership
The initial loss has already happened. For your next decision, compare the usefulness of keeping the car with the costs ahead: maintenance, repairs, insurance, financing and possible changes in value. Check the actual warranty for your vehicle rather than assuming all brands have the same coverage. Keeping a car longer can spread purchase costs over more years, but a large repair can change the calculation.
A new model is a reason to check, not to panic
A redesign or new competing model may influence demand for the older version. It does not prove that your car will suddenly lose a specific amount. Product cycles vary. Get current, written purchase offers rather than making a decision from a generic curve or an announcement alone.
Compare an offer with your payoff
If the vehicle is financed, ask the lender for a current payoff quote and its expiration. Compare that amount with a verified purchase offer and any applicable transaction costs. A positive difference may leave money for you; a negative difference means the shortfall needs to be addressed. Monthly payment alone does not tell you your equity.
A practical next step for Orange County sellers
Gather the mileage, vehicle details and known history, then request comparable written offers using the same information. If you already have an offer, OC Auto Buy can review it for an eligible vehicle. The goal is a decision grounded in your car and your plans, rather than a promised perfect moment to sell.
About this article
Edited and adapted into English from our founder’s original Chinese-language note. Customer identities and private correspondence are omitted. Examples and opinions are context, not a valuation or a binding offer.