2023 Audi A3 prices under £20,000

There are 827 used 2023 Audi A3 cars for sale under £20,000 from UK dealers on AskCar, as of 12 November 2026. Typical asking price £18,200 (the median: half cost less, half cost more). The cheapest is £9,995. The middle half are priced between £17,000 and £19,200. Median mileage: about 31,000 miles.

Dealers lowered the asking price on more than half of 2023 Audi A3 cars under £20,000: 456 of the 827 in the 14 days to 12 November 2026.

AskCar lists 6,840 used Audi A3 across the UK, from 2,317 dealerships.

As of 12 November 2026, AskCar lists 596,362 cars and vans from 12,840 UK dealerships, read daily from dealer websites: over 99% of UK dealer used car adverts. No dealer pays to be listed.

2023 Audi A3 cars for sale now under £20,000, page 3 of 17

This page lists 2023 Audi A3 cars not picked out on page 1, cheapest first.

The AskCar estimate is our expected asking price for that one car, from its model, age, mileage and specification, using the 6,705 priced Audi A3 adverts on AskCar as of 12 November 2026. The figures on this page describe the cars advertised, not a valuation of every 2023 Audi A3.

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. Each car's AskCar page has its full price history and cheaper cars like it.

This list leaves out 13 cars whose advertised mileage is lower than the mileage recorded at their last MOT test.

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