Used Audi A8 for sale near Cardiff
There are 8 used Audi A8 for sale from UK dealers within 20 miles of Cardiff on AskCar, as of 4 November 2026. The cheapest is £9,295. AskCar lists 229 used Audi A8 across the UK, from 195 dealerships.
As of 4 November 2026, AskCar lists 592,552 cars and vans from 12,964 UK dealerships, read daily from dealer websites: over 99% of UK dealer used car adverts. No dealer pays to be listed.
Price reductions near Cardiff
2 of the 8 Audi A8 within 20 miles of Cardiff had their price reduced in the last 14 days to 4 November 2026. Each one's line in the list below says by how much.
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 219 priced Audi A8 adverts on AskCar as of 4 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, town and distance; AskCar page.
Cheaper cars like each one, with its price history, are on its AskCar page.
- 2018 Audi A8 3.0, 281 bhp, automatic, diesel, saloon, 4 doors, silver. Mileage: 30,000 miles. Price: £23,750, unchanged since AskCar first saw it on 16 October 2026, 19 days ago. Fair price: £1,238 (4%) under the AskCar estimate of £24,988. Euro 6 emissions standard. ULEZ compliant. Dealer: Mon Motors Cardiff Audi in Cardiff, 5 miles from Cardiff. AskCar page: https://askcar.co.uk/car/audi-a8-2018-3de84e496768
- 2023 Audi A8 3.0 Sport, 281 bhp, automatic, diesel, saloon, 4 doors, grey. Mileage: 35,942 miles. Price: £31,991, unchanged since AskCar first saw it on 3 November 2026, 1 day ago. Fair price: £914 (2%) under the AskCar estimate of £32,905. Euro 6 emissions standard. ULEZ compliant. MOT: valid until 30 July 2027. Dealer: Cardiff Trade Sales in Cardiff, 2 miles from Cardiff. AskCar page: https://askcar.co.uk/car/audi-a8-2023-1f742e06cb1f
- 2023 Audi A8 3.0 TDI Sport, 281 bhp, automatic, diesel, saloon, 4 doors, silver. Mileage: 29,200 miles. Price: £33,400, reduced by £2,100 from £35,500 since AskCar first saw it on 18 September 2026, 47 days ago. Fair price: £667 (1%) under the AskCar estimate of £34,067. Euro 6 emissions standard. ULEZ compliant. MOT: valid until 2 September 2027. Dealer: Sytner Select Cardiff in Cardiff, 2 miles from Cardiff. AskCar page: https://askcar.co.uk/car/audi-a8-2023-7f4dd862e468
- 2023 Audi A8 3.0 Sport, 281 bhp, automatic, diesel, saloon, 4 doors, silver. Mileage: 27,250 miles. Price: £34,500, reduced by £850 from £35,350 since AskCar first saw it on 25 September 2026, 40 days ago. Fair price: £225 (under 1%) over the AskCar estimate of £34,275. Euro 6 emissions standard. ULEZ compliant. Dealer: Mon Motors Cardiff Audi in Cardiff, 5 miles from Cardiff. AskCar page: https://askcar.co.uk/car/audi-a8-2023-5aa381cda874
- 2011 Audi A8 4.2 TDI V8 Executive SE, 345 bhp, automatic, diesel, saloon, 4 doors, silver. Mileage: 95,810 miles. Price: £9,295, unchanged since AskCar first saw it on 24 October 2026, 11 days ago. Fair price: £287 (3%) over the AskCar estimate of £9,008. Euro 5 emissions standard. MOT: valid until 17 May 2027. Dealer: Plan-it Motor Company in Cwmbran, 14 miles from Cardiff. AskCar page: https://askcar.co.uk/car/audi-a8-2011-7c80e0fb34c2
- 2015 Audi A8 4.2 SE Executive, 379 bhp, automatic, diesel, saloon, 4 doors, black. Mileage: 98,800 miles. Price: £14,995, reduced by £1,000 from £15,995 since AskCar first saw it on 6 August 2026, 90 days ago. Above the going rate: £1,472 (10%) over the AskCar estimate of £13,523. Euro 6 emissions standard. ULEZ compliant. MOT: valid until 16 April 2027. Dealer: Cardiff Car Sales in Cardiff, 0 miles from Cardiff. AskCar page: https://askcar.co.uk/car/audi-a8-2015-b7dd0bc82bd6
- 2023 Audi A8 3.0 TFSIe V6 Black Edition, 456 bhp, automatic, plug-in hybrid (petrol), saloon, 4 doors, black. Mileage: 1,251 miles. Price: £55,386, reduced by £2,605 from £57,991 since AskCar first saw it on 28 May 2026, 160 days ago. Above the going rate: £6,258 (12%) over the AskCar estimate of £49,128. Euro 6 emissions standard. ULEZ compliant. Dealer: Sinclair Group in Bridgend, 18 miles from Cardiff. AskCar page: https://askcar.co.uk/car/audi-a8-2023-7c5b0adf61a3
- 2019 Audi A8 3.0, 282 bhp, automatic, diesel, saloon, 4 doors, black. Mileage: 124,198 miles. Price: £18,500, unchanged since AskCar first saw it on 8 October 2026, 27 days ago. Above the going rate: £2,913 (18%) over the AskCar estimate of £15,587. Euro 6 emissions standard. ULEZ compliant. MOT: valid until 16 August 2027. Dealer: Cwmbran Motors in Cwmbran, 13 miles from Cardiff. AskCar page: https://askcar.co.uk/car/audi-a8-2019-4d53171dcaee
Audi A8 across the UK by price
- Under £8,000 (26 cars)
- Under £10,000 (41 cars)
- Under £15,000 (78 cars)
- Under £20,000 (121 cars)
- Under £30,000 (186 cars)
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