Used Audi S3 saloon for sale under £20,000

There are 101 used Audi S3 saloon under £20,000 for sale from UK dealers on AskCar, as of 29 October 2026. Typical asking price £16,900 (the median: half cost less, half cost more). The cheapest is £9,555. AskCar lists 1,031 used Audi S3 across the UK, from 627 dealerships.

The middle half of the 101 cars are priced between £14,700 and £18,500.

As of 29 October 2026, AskCar lists 587,923 cars and vans from 12,992 UK dealerships, read daily from dealer websites: over 99% of UK dealer used car adverts. No dealer pays to be listed.

23 of the 101 cars had their price reduced in the last 14 days to 29 October 2026.

Median asking price by year

YearFor sale with a priceMedian asking priceMiddle half priced between
201725£18,000£17,000 to £18,800
201620£16,600£14,600 to £18,000
201526£15,400£14,500 to £17,000

Cars for sale now, page 1 of 2

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 1,001 priced Audi S3 adverts on AskCar as of 29 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.

Audi S3 by gearbox, fuel and body

Audi S3 saloon by price

Audi S3 prices by year

Audi S3 by price

Saloon cars under £20,000

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