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: 60,000 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

This 2018 BMW 6 Series Gran Coupe M Sport has covered 60,000 miles. The AskCar estimate for this car is £19,162. It is priced at £20,495, which is £1,333 above that estimate. 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 have tracked this advert for 7 days. According to the government's MOT record, its advertised mileage is consistent with the latest test. The seller is Essex Cars, based in Colchester. 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: £1,333 (6%) over the AskCar estimate of £19,162.

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 7 days.

Price history

AskCar first saw this advert on 31 October 2026 at £20,495. 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 7 November 2026: valid until 18 March 2027.

It has had 6 MOTs. The latest, on 2 March 2026, passed.

There were no advisories at the latest test.

Mileage at that test: 59,552 miles, which matches the advertised 60,000 miles.

Advertised mileage is about 700 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: £20,995, £500 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: 60,118 miles. Price: £17,999, £2,496 less than this car. Dealer: Ccs Car Sales in Thatcham. AskCar page: https://askcar.co.uk/car/bmw-6-series-gran-coupe-2018-050635845dec
• 2018 BMW 6 Series Gran Coupe M Sport, 3.0 diesel saloon, black. Mileage: 60,667 miles. Price: £17,730, £2,765 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, black, under a mile from this car. Mileage: 50,003 miles. Price: £19,995, £500 less than this car. Dealer: Essex Cars in Colchester. AskCar page: https://askcar.co.uk/car/bmw-6-series-gran-coupe-2018-596c8203ef7c