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: 60,118 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 60,118 miles. Its asking price of £17,999 is £1,146 below the AskCar estimate of £19,145. The AskCar estimate draws on 112 BMW 6 Series Gran Coupe adverts across the UK, adjusting for age, mileage, trim, engine and other specifications. We first saw this car advertised 163 days ago. Its asking price has since fallen by £1,000. The government's MOT record matches its advertised mileage. You can find this car at Ccs Car Sales in Thatcham. How to contact the dealer and its opening hours are on this AskCar page.

Stock data as of 7 November 2026.

How we estimate prices and check cars

Price

Fair price: £1,146 (5%) under the AskCar estimate of £19,145.

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 112 priced BMW 6 Series Gran Coupe adverts across different ages and specifications, as of 7 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 7 November 2026.

Time on sale

This 2018 BMW 6 Series Gran Coupe has been on sale for at least 163 days.

Price history

AskCar first saw this advert on 28 May 2026 at £18,999. Its asking price is now £17,999, £1,000 less. The latest price cut was seen on 31 October 2026.

Price changes recorded:

• 28 May 2026: £18,999
• 10 June 2026: £18,699
• 19 June 2026: £18,499
• 7 July 2026: £18,299
• 25 July 2026: £17,999
• 11 October 2026: £18,699
• 31 October 2026: £17,999

Mileage and MOT

MOT, from the government's MOT records (DVSA, the Driver and Vehicle Standards Agency), as of 7 November 2026: valid until 7 April 2027.

It has had 6 MOTs. The latest, on 8 April 2026, passed.

There were no advisories at the latest test.

Mileage at that test: 59,822 miles, which matches the advertised 60,118 miles.

Advertised mileage is about 600 miles lower 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 7 November 2026.

The 3 closest to this car in mileage:

• 2018 BMW 6 Series Gran Coupe M Sport, 3.0 diesel saloon, black. Mileage: 60,000 miles. Price: £20,495, £2,496 more than this car. Dealer: Essex Cars in Colchester. AskCar page: https://askcar.co.uk/car/bmw-6-series-gran-coupe-2018-91f8ec35a84a
• 2018 BMW 6 Series Gran Coupe M Sport, 3.0 diesel saloon, black. Mileage: 60,000 miles. Price: £20,995, £2,996 more than this car. Dealer: AM Autohaus in Slough. AskCar page: https://askcar.co.uk/car/bmw-6-series-gran-coupe-2018-c0afc08c8950
• 2018 BMW 6 Series Gran Coupe M Sport, 3.0 diesel saloon, black. Mileage: 60,667 miles. Price: £17,730, £269 less 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, silver, 24 miles from this car. Mileage: 82,568 miles. Price: £16,995, £1,004 less than this car. Dealer: Lion Car Hub in Farnham. AskCar page: https://askcar.co.uk/car/bmw-6-series-gran-coupe-2018-fda04483b99a