Every valuation tool asks you the same four things: year, make, model, mileage. You type them in, it prints a number, and you either feel good or feel robbed. The number looks precise. It usually isn't.
Here's what those tools can't see, and what it does to the answer.
Your car isn't a price, it's a range
I pulled every 2020 F-150 in our listings with 80,000 to 110,000 miles — 159 trucks, as close to identical as real cars get. The average ask was $23,589. The spread around it was plus or minus $7,981.
That's not a rounding error. Two owners with functionally the same truck are asking prices fifteen thousand dollars apart, and both of them typed the same four fields into the same calculator.
| What you enter | What it can't see |
|---|---|
| Year | Service records, or their absence |
| Make and model | Trim and factory options |
| Mileage | How those miles were driven |
| ZIP code | Local supply — states vary up to 50% |
The mistake that skews everything
The big one is comparing against the wrong crowd. People look up "what's my car worth," see an average, and forget the average includes cars in worse shape and better shape than theirs, from states where the same vehicle trades for thousands more or less.
Location alone moves the number hard — the same truck runs about 50% more in Oregon than Florida once mileage is matched. If the tool doesn't ask where you are, its answer is a national blur.
The second mistake is trusting a single figure when what you need is the band. Knowing your truck sits somewhere between $18,000 and $30,000 is genuinely more useful than a confident-looking $23,589, because it tells you where there's room to argue. Our used value data shows the typical range rather than one number for exactly this reason.
How I'd actually price a car
Start with the range for your year and mileage. Then place yourself inside it honestly: full service history and a clean title push you up, a spotty record and cosmetic damage push you down. Documentation is worth real money — buyers pay for certainty.
Then check what a buyer will find when they look you up, because they will. Run your own VIN before listing: an open recall you didn't know about is a discount request waiting to happen, and fixing it first is free.
Finally, remember the number moves over time in a predictable direction. If you're deciding whether to sell now or next year, how depreciation works for your model matters more than any single valuation.
Frequently asked questions
How accurate are online car valuation tools?
They give a centre point, not a price. Among 159 near-identical trucks in our listings the spread was ±$7,981 around the average, which no four-field form can predict.
Does location change what my car is worth?
Substantially. The same truck at matched mileage averages roughly 50% more in Oregon than in Florida, driven by local supply rather than cost of living.
How do I get a better estimate?
Work with the range for your year and mileage rather than a single figure, then place your car inside it based on service history, title status and condition.
Denis Kataev is a serial solopreneur and the founder of ForCar. With 15+ years in software engineering and 10 years in SEO, he builds data-driven products end to end — backed by a sharp eye for design. At ForCar he mines proprietary vehicle datasets, turning raw numbers into buying advice you can actually trust.
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