Used petrol cars for sale under £20,000

There are 216,142 used petrol cars under £20,000 for sale from UK dealers on AskCar, as of 31 October 2026. Typical asking price £11,800 (the median: half cost less, half cost more). The cheapest is £500.

The middle half of the 216,142 cars are priced between £7,700 and £15,400.

As of 31 October 2026, AskCar lists 583,548 cars and vans from 12,716 UK dealerships, read daily from dealer websites: over 99% of UK dealer used car adverts. No dealer pays to be listed.

73,256 of the 216,142 cars had their price reduced in the last 14 days to 31 October 2026.

Cars for sale now, page 39 of 2,162

Best value first: the cars priced furthest below their AskCar estimate come first, and those without one come after. The AskCar estimate is our expected asking price for that one car, from its model, age, mileage and specification, using the priced adverts of its make and model on AskCar as of 31 October 2026.

Each car: year, make, model, engine and trim, power, gearbox, fuel, body, doors, colour; mileage; price and its changes; how the price compares with the AskCar estimate; emissions standard and ULEZ compliance where it holds; MOT; dealer and town; AskCar page.

Cheaper cars like each one, with its price history, are on its AskCar page.

·

Petrol cars near you

Petrol cars under £20,000 by model

Popular models under £20,000

Other budgets

Everything