What is your car worth?
A used car doesn't have one single price — it has several, depending on how it's being sold. Here's how UK car valuations work, what moves the number, and how to check a fair price before you buy or sell.
Quick answer: A car's value is based on real market data for the same make, model, age and mileage, then adjusted for condition and history. Every GuruCarCheck full report (from £7.99) includes a market valuation plus an AI view on whether the asking price is fair.
What a car valuation actually is
A car valuation is an estimate of what a vehicle is worth in the current market. It isn't a fixed quote — it's a guide price built from real evidence: recent advertised prices, sold prices and auction results for cars of the same make, model, year, trim and specification. Valuation providers pull together thousands of these data points and adjust them for the individual car in front of you.
Because the used-car market moves constantly, a valuation reflects a moment in time. A figure from six months ago may no longer hold, which is why it's worth checking a current valuation whenever you're about to buy, sell or part-exchange.
The different values — and when each applies
The same car can be worth noticeably different amounts depending on how it changes hands. These are the values you'll come across:
- Dealer forecourt price. The highest figure — what you'd pay buying from a franchised or independent dealer. It includes preparation, a warranty, and the dealer's overheads and margin.
- Private clean. What a well-presented, well-maintained example with full history would fetch in a private sale between individuals.
- Private average. The typical private-sale figure for a car in ordinary condition for its age and mileage — the most realistic number for most owners selling privately.
- Part-exchange. What a dealer will offer against a new purchase. It's lower than a private sale because the dealer needs to recondition and resell the car at a profit.
- Trade / auction. The lowest figure — what the car would make at a trade auction or as a straight sale to the motor trade. This is the wholesale value.
As a rule of thumb: sell privately and you'll get more but do more work; part-exchange or sell to the trade and you'll get less in return for speed and convenience.
What affects a car's value
Two cars of the same age and model can be worth very different sums. The main factors are:
- Mileage. Higher mileage than average for the age pushes the value down; lower mileage lifts it.
- MOT history. A clean, continuous MOT record with few advisories reassures buyers; a history of failures and recurring faults erodes value.
- Service history. A full, documented service record — ideally main-dealer or specialist — is one of the strongest supports for a higher price.
- Write-off and finance status. A recorded insurance write-off can cut value substantially, and outstanding finance means the seller doesn't yet own the car outright to sell.
- Condition and specification. Bodywork, interior wear, desirable options and a sought-after trim all move the figure.
- Demand. Seasonality and popularity matter — convertibles rise in spring, economical models hold up when fuel is dear, and scarce variants command a premium.
Worth knowing: Hidden history is where valuations catch people out. A car advertised at a normal price can be worth far less if it carries a write-off marker or outstanding finance — problems you won't see by looking at it.
How GuruCarCheck values a car
Every GuruCarCheck full report includes a market valuation for the exact vehicle, based on its registration, so the figure reflects the real car rather than a generic model average. Alongside the valuation you get the history that drives it — mileage record, MOT history, and any write-off or outstanding-finance markers — so you can see why the number is what it is.
We also run an AI analysis that compares the seller's asking price against the market valuation and the car's history, then tells you whether the price looks fair, high or a genuine bargain. It's the difference between knowing a car's story and knowing whether you're paying the right amount for it. A full finance, write-off, mileage and valuation report starts from £7.99.
Car valuation FAQs
How is a used car valued?
A used car's value is based on real market data — recent advertised and sold prices for the same make, model, age and trim — then adjusted for mileage, condition, service history and demand. Valuation providers combine thousands of these data points to produce a guide price for each type of sale, such as private, dealer or trade.
What's the difference between trade and private value?
Trade value is what a dealer or auction would pay for the car, so it is the lowest figure. Private value is what a private buyer would typically pay, so it is higher. Part-exchange usually sits close to trade value, while a dealer forecourt price is the highest because it includes warranty, preparation and overheads.
Is the valuation accurate?
A valuation is a well-informed guide, not a fixed quote. It reflects the typical market at the time it is produced, but the final price depends on the car's exact condition, its history, local demand and how motivated the buyer or seller is. Use it as a benchmark to judge whether an asking price is fair.