Used Audi S3 saloon for sale under £20,000

There are 97 used Audi S3 saloon under £20,000 for sale from UK dealers on AskCar, as of 8 November 2026. Typical asking price £16,900 (the median: half cost less, half cost more). The cheapest is £8,888. AskCar lists 1,035 used Audi S3 across the UK, from 634 dealerships.

The middle half of the 97 cars are priced between £15,000 and £18,300.

As of 8 November 2026, AskCar lists 595,762 cars and vans from 12,892 UK dealerships, read daily from dealer websites: over 99% of UK dealer used car adverts. No dealer pays to be listed.

20 of the 97 cars had their price reduced in the last 14 days to 8 November 2026.

Median asking price by year

YearFor sale with a priceMedian asking priceMiddle half priced between
201725£17,800£17,000 to £18,600
201522£15,400£14,500 to £16,800

Cars for sale now

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 1,014 priced Audi S3 adverts on AskCar as of 8 November 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

Audi S3 near you

Saloon cars under £20,000

More Audi

Same budget

Everything