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: 82,568 miles
• Fuel: Diesel
• Body: Saloon, 4 doors, 5 seats
• Engine: 3.0 litres, 309 bhp
• Gearbox: Automatic
• Drive: Rear-wheel drive
• Colour: Silver
• CO2: 152 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

This 2018 BMW 6 Series Gran Coupe M Sport has covered 82,568 miles, around 21,900 more miles than is typical for its age. Its asking price of £16,995 is £805 above the AskCar estimate of £16,190. The AskCar estimate uses 111 UK dealer adverts for the BMW 6 Series Gran Coupe, with adjustments for age, mileage, trim, engine and other specifications. It first appeared in our advert records 19 days ago. We checked its advertised mileage against the government's MOT record, and they match. It is advertised by Lion Car Hub in Farnham. 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: £805 (4%) over the AskCar estimate of £16,190.

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 19 days.

Price history

AskCar first saw this advert on 20 October 2026 at £16,995. Its asking price has not changed.

Mileage and MOT

MOT, from the government's MOT records (DVSA, the Driver and Vehicle Standards Agency), as of 8 November 2026: valid until 28 June 2027.

It has had 8 MOTs. The latest, on 15 June 2026, passed.

Advisories at the latest test: brake pad(s) wearing thin all.

Mileage at that test: 79,266 miles, which matches the advertised 82,568 miles.

Advertised mileage is about 21,900 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: 81,093 miles. Price: £16,999, the same price as this car. Dealer: Brookway Cars in Prenton. AskCar page: https://askcar.co.uk/car/bmw-6-series-gran-coupe-2018-cd5eff11c2c0
• 2018 BMW 6 Series Gran Coupe M Sport, 3.0 diesel saloon, grey. Mileage: 86,000 miles. Price: £15,495, £1,500 less than this car. Dealer: Auto 2000 in Havering. AskCar page: https://askcar.co.uk/car/bmw-6-series-gran-coupe-2018-dc81ac4fccaa
• 2018 BMW 6 Series Gran Coupe M Sport, 3.0 diesel saloon, blue. Mileage: 86,833 miles. Price: £16,250, £745 less than this car. Dealer: Walters Motor Group - Loddon in Norwich. AskCar page: https://askcar.co.uk/car/bmw-6-series-gran-coupe-2018-46e30dd0f3a9

• The nearest: 2018 BMW 6 Series Gran Coupe M Sport, 3.0 diesel saloon, black, 24 miles from this car. Mileage: 60,118 miles. Price: £17,999, £1,004 more than this car. Dealer: Ccs Car Sales in Thatcham. AskCar page: https://askcar.co.uk/car/bmw-6-series-gran-coupe-2018-050635845dec