The numbers
The most overpriced used cars in Britain right now
Numbers computed 27 August 2026 from live adverts · models with 100+ comparable listings
For every model we track, we fit a fair-value curve on the live adverts — what this car, at this age and mileage, actually changes hands around — and then compare it with what sellers are asking. Most of the time the two agree. The interesting rows are where they don’t.
Below are the models where the median asking price sits furthest above the fitted value: cars where, on the middle of the market, the window sticker is writing cheques the metal doesn’t cash. A positive gap doesn’t mean nobody should buy one — it means the asking prices have drifted, and there is more room to negotiate than the adverts suggest.
Asking the most over the odds
| Model | Typical asking | Fitted value | Gap |
|---|---|---|---|
| BMW iX | £44,997 | £37,250 | −21% |
| Ford Tourneo Custom | £19,995 | £16,870 | −19% |
| Volkswagen ID.4 | £23,994 | £20,322 | −18% |
| Citroen C4 | £4,432 | £3,795 | −17% |
| Audi S4 Avant | £23,199 | £20,277 | −14% |
| Toyota Alphard | £15,000 | £13,190 | −14% |
| Porsche 718 Cayman | £49,988 | £44,970 | −11% |
| Ford Grand Tourneo Connect | £14,995 | £13,495 | −11% |
| Mercedes-Benz GLA | £16,575 | £14,997 | −11% |
| Land Rover Range Rover | £43,990 | £39,993 | −10% |
Sample sizes 116–1,656 adverts per model.
And the other end of the table
The same arithmetic run backwards — models where asking prices sit at or under the fitted value, which is where a patient buyer shops.
- Geely EX5+18%
- MG MGS5+16%
- Alfa Romeo MiTo+16%
- Vauxhall Vivaro+15%
- Citroen Berlingo+14%
Method, in one paragraph
Fair values are quantile-regression fits on mileage and year over every live advert we track for a model — no trade book, no survey, just the market’s own asking prices with the outliers handled properly. “Typical asking” is the median advert. Only models with at least 100comparable listings make the table, because a gap measured on thin data is a rumour, not a finding. The numbers refresh with every market sweep, so this page disagrees with itself over time — that’s the feature.
Looking at one of these?
Paste the listing and see where it sits against its own model’s curve — free.