Used BMW 6 Series for sale near Cardiff
There are 3 used BMW 6 Series for sale from UK dealers within 20 miles of Cardiff on AskCar, as of 11 November 2026. The cheapest is £8,490. AskCar lists 182 used BMW 6 Series across the UK, from 157 dealerships.
As of 11 November 2026, AskCar lists 593,449 cars and vans from 12,847 UK dealerships, read daily from dealer websites: over 99% of UK dealer used car adverts. No dealer pays to be listed.
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 164 priced BMW 6 Series adverts on AskCar as of 11 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.
- 2015 BMW 6 Series 3.0, 309 bhp, automatic, diesel, coupe, 2 doors, 4 seats, black. Mileage: 75,533 miles. Price: £10,999, reduced by £2,000 from £12,999 since AskCar first saw it on 28 May 2026, 167 days ago. Good value: £1,586 (12%) under the AskCar estimate of £12,585. MOT: valid until 9 April 2027. Dealer: Motorplus South Wales in Newport, 11 miles from Cardiff. AskCar page: https://askcar.co.uk/car/bmw-6-series-2015-0bc58900246f
- 2015 BMW 6 Series 3.0 640d M Sport, 309 bhp, automatic, diesel, 2 doors, 4 seats, white. Mileage: 91,071 miles. Price: £11,500, unchanged since AskCar first saw it on 2 November 2026, 9 days ago. Fair price: £221 (1%) under the AskCar estimate of £11,721. MOT: valid until 29 October 2027. Dealer: Bridgend Ford in Bridgend, 17 miles from Cardiff. AskCar page: https://askcar.co.uk/car/bmw-6-series-2015-44b2a88200dd
- 2014 BMW 6 Series 3.0 640d M Sport, 309 bhp, automatic, diesel, coupe, 2 doors, 4 seats, grey. Mileage: 124,000 miles. Price: £8,490, unchanged since AskCar first saw it on 22 September 2026, 50 days ago. Fair price: £40 (under 1%) over the AskCar estimate of £8,450. Euro 5 emissions standard. MOT: the latest record we hold ran out on 1 November 2026; ask the dealer for the current MOT. Dealer: D B Specialist Cars in Cwmbran, 13 miles from Cardiff. AskCar page: https://askcar.co.uk/car/bmw-6-series-2014-fcca6cbba816
BMW 6 Series across the UK by price
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