2021 Audi A5 prices under £20,000

There are 77 used 2021 Audi A5 cars for sale under £20,000 from UK dealers on AskCar, as of 7 November 2026. Typical asking price £18,400 (the median: half cost less, half cost more). The cheapest is £11,250. The middle half are priced between £16,800 and £19,000. Median mileage: about 60,000 miles.

Dealers lowered the asking price on more than a third of 2021 Audi A5 cars under £20,000: 31 of the 77 in the 14 days to 7 November 2026.

AskCar lists 1,933 used Audi A5 across the UK, from 1,080 dealerships.

As of 7 November 2026, AskCar lists 601,018 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.

2021 Audi A5 cars for sale now under £20,000, page 2 of 2

This page lists 2021 Audi A5 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 1,869 priced Audi A5 adverts on AskCar as of 7 November 2026. The figures on this page describe the cars advertised, not a valuation of every 2021 Audi A5.

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 1 car whose advertised mileage is lower than the mileage recorded at its last MOT test.

Audi A5 by gearbox, fuel and body

Audi A5 under £20,000 by gearbox, fuel and body

Audi A5 prices by year

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