Used BMW X6 M for sale near Cardiff
There are 2 used BMW X6 M for sale from UK dealers within 20 miles of Cardiff on AskCar, as of 7 November 2026. The cheapest is £47,990. AskCar lists 56 used BMW X6 M across the UK, from 53 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.
Price reductions near Cardiff
1 of the 2 BMW X6 M within 20 miles of Cardiff had its price reduced in the last 14 days to 7 November 2026. Its 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 54 priced BMW X6 M adverts on AskCar as of 7 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.
- 2021 BMW X6 M 4.4 i V8 Competition, 616 bhp, automatic, petrol, SUV, 5 doors, black. Mileage: 18,599 miles. Price: £59,810, reduced by £8,180 from £67,990 since AskCar first saw it on 28 May 2026, 163 days ago. Fair price: £3,541 (5%) under the AskCar estimate of £63,351. Euro 6 emissions standard. ULEZ compliant. MOT: valid until 9 February 2027. Dealer: BUY & Go Cars in Cardiff, 2 miles from Cardiff. AskCar page: https://askcar.co.uk/car/bmw-x6-m-2021-245ec9f4cf80
- 2020 BMW X6 M 4.4 i V8 Competition, 616 bhp, automatic, petrol, SUV, 5 doors, grey. Mileage: 58,647 miles. Price: £47,990, reduced by £3,000 from £50,990 since AskCar first saw it on 2 July 2026, 128 days ago. Fair price: £2,004 (4%) over the AskCar estimate of £45,986. Euro 6 emissions standard. ULEZ compliant. MOT: valid until 1 December 2026. Dealer: Auto Unit in Newport, 11 miles from Cardiff. AskCar page: https://askcar.co.uk/car/bmw-x6-m-2020-f1ea7caad524
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