2018 BMW 6 Series Gran Coupe 3.0 640d M Sport

Overview

• Make: BMW
• Model: 6 Series Gran Coupe
• Trim: M Sport
• Version: 3.0 640d M Sport Auto RWD Euro 6 (s/s) 4dr (309 bhp)
• Year: 2018
• Mileage: 62,612 miles
• Fuel: Diesel
• Body: Saloon, 4 doors, 5 seats
• Engine: 3.0 litres, 309 bhp
• Gearbox: Automatic
• Drive: Rear-wheel drive
• Colour: Black
• CO2: 152 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

The advertised mileage for this 2018 BMW 6 Series Gran Coupe M Sport is 62,612 miles. Its asking price of £17,299 is £1,451 below the AskCar estimate of £18,750. To work out the AskCar estimate, we analyse UK dealer adverts for 111 BMW 6 Series Gran Coupe cars across different ages and specifications. The asking price is now £1,400 lower than when we first recorded the advert 164 days ago. We checked its advertised mileage against the government's MOT record, and they match. The seller is Fords Of Winsford Car Supermarket, based in Winsford. How to contact the dealer and its opening hours are on this AskCar page.

Stock data as of 8 November 2026.

How we estimate prices and check cars

Price

Fair price: £1,451 (7%) under the AskCar estimate of £18,750.

The AskCar estimate is our expected asking price for this car. It uses UK dealer asking prices, accounting for make, model, trim, version, age, mileage, fuel, gearbox, body type, driven wheels, engine size and power. It is an advertised price, not a confirmed sale price.

It draws on 111 priced BMW 6 Series Gran Coupe adverts across different ages and specifications, as of 8 November 2026.

A 2018 BMW 6 Series Gran Coupe with the 3.0 diesel engine is typically advertised at £18,000: the median of the 19 for sale on AskCar, as of 8 November 2026.

Time on sale

This 2018 BMW 6 Series Gran Coupe has been on sale for at least 164 days.

Price history

AskCar first saw this advert on 28 May 2026 at £18,699. Its asking price is now £17,299, £1,400 less. The latest price cut was seen on 30 October 2026.

Price changes recorded:

• 28 May 2026: £18,699
• 31 May 2026: £18,599
• 4 June 2026: £18,499
• 10 June 2026: £18,599
• 16 June 2026: £18,299
• 19 June 2026: £18,399
• 27 June 2026: £18,299
• 2 July 2026: £18,499
• 5 July 2026: £18,399
• 8 July 2026: £18,199
• 12 July 2026: £18,099
• 14 July 2026: £18,299
• 17 July 2026: £18,099
• 23 July 2026: £17,899
• 31 July 2026: £17,999
• 1 August 2026: £18,299
• 5 August 2026: £18,199
• 8 August 2026: £18,099
• 11 August 2026: £17,999
• 16 August 2026: £17,899
• 26 August 2026: £17,699
• 29 August 2026: £17,799
• 8 September 2026: £17,599
• 11 September 2026: £17,699
• 16 September 2026: £17,599
• 21 September 2026: £17,499
• 25 September 2026: £17,699
• 1 October 2026: £17,599
• 12 October 2026: £17,399
• 21 October 2026: £17,299
• 26 October 2026: £17,399
• 30 October 2026: £17,299

Mileage and MOT

MOT, from the government's MOT records (DVSA, the Driver and Vehicle Standards Agency), as of 8 November 2026: valid until 22 February 2027.

It has had 6 MOTs. The latest, on 5 February 2026, passed.

There were no advisories at the latest test.

Mileage at that test: 61,862 miles, which matches the advertised 62,612 miles.

Advertised mileage is about 1,900 miles higher than the median mileage of a 2018 BMW 6 Series Gran Coupe on AskCar.

Similar cars

18 other 2018 BMW 6 Series Gran Coupe M Sport 3.0 diesel automatic saloons are for sale at UK dealers, from £13,995 to £27,995, as of 8 November 2026.

The 3 closest to this car in mileage:

• 2018 BMW 6 Series Gran Coupe M Sport, 3.0 diesel saloon, blue. Mileage: 60,940 miles. Price: £22,000, £4,701 more than this car. Dealer: Sam Jordan Cars in Stanningfield. AskCar page: https://askcar.co.uk/car/bmw-6-series-gran-coupe-2018-5cbccdd5f07d
• 2018 BMW 6 Series Gran Coupe M Sport, 3.0 diesel saloon, black. Mileage: 60,700 miles. Price: £18,495, £1,196 more than this car. Dealer: BM Automotive (Sw) in Saltash. AskCar page: https://askcar.co.uk/car/bmw-6-series-gran-coupe-2018-467be055952f
• 2018 BMW 6 Series Gran Coupe M Sport, 3.0 diesel saloon, black. Mileage: 60,667 miles. Price: £17,730, £431 more than this car. Dealer: Auto Choice in Newtownards. AskCar page: https://askcar.co.uk/car/bmw-6-series-gran-coupe-2018-f0262eb1807d

• The nearest: 2018 BMW 6 Series Gran Coupe M Sport, 3.0 diesel saloon, blue, 25 miles from this car. Mileage: 81,093 miles. Price: £16,999, £300 less than this car. Dealer: Brookway Cars in Prenton. AskCar page: https://askcar.co.uk/car/bmw-6-series-gran-coupe-2018-cd5eff11c2c0