2015 BMW 6 Series 3.0 640d M Sport

Overview

• Make: BMW
• Model: 6 Series
• Trim: M Sport
• Version: 3.0 640d M Sport Auto RWD Euro 6 2dr (308 bhp)
• Year: 2015
• Mileage: 83,000 miles
• Fuel: Diesel
• Body: Convertible, 2 doors, 4 seats
• Engine: 3.0 litres, 308 bhp
• Gearbox: Automatic
• Drive: Rear-wheel drive
• Colour: White
• CO2: 153 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

With 83,000 miles on the clock, this 2015 BMW 6 Series M Sport has done roughly 3,700 more miles than a typical 2015 BMW 6 Series. The AskCar estimate for this car is £12,876. It is priced at £13,400, which is £524 above that estimate. The AskCar estimate uses 164 UK dealer adverts for the BMW 6 Series, with adjustments for age, mileage, trim, engine and other specifications. We first saw this car advertised 7 days ago. Its asking price has since fallen by £300. We checked its advertised mileage against the government's MOT record, and they match. It is advertised by GS Car Centre in Preston. How to contact the dealer and its opening hours are on this AskCar page.

Stock data as of 6 November 2026.

How we estimate prices and check cars

Price

Fair price: £524 (4%) over the AskCar estimate of £12,876.

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 164 priced BMW 6 Series adverts across different ages and specifications, as of 6 November 2026.

A 2015 BMW 6 Series with the 3.0 diesel engine is typically advertised at £12,700: the median of the 16 for sale on AskCar, as of 6 November 2026.

Time on sale

This 2015 BMW 6 Series has been on sale for at least 7 days.

Price history

AskCar first saw this advert on 30 October 2026 at £13,700. Its asking price is now £13,400, £300 less. The latest price cut was seen on 5 November 2026.

Price changes recorded:

• 30 October 2026: £13,700
• 31 October 2026: £13,500
• 5 November 2026: £13,400

Mileage and MOT

MOT, from the government's MOT records (DVSA, the Driver and Vehicle Standards Agency), as of 6 November 2026: valid until 28 October 2027.

It has had 9 MOTs. The latest, on 29 October 2026, passed.

There were no advisories at the latest test.

Mileage at that test: 83,059 miles, which matches the advertised 83,000 miles.

Advertised mileage is about 3,700 miles higher than the median mileage of a 2015 BMW 6 Series on AskCar.

Similar cars

3 other 2015 BMW 6 Series M Sport 3.0 diesel automatic convertibles are for sale at UK dealers, from £10,623 to £15,995, as of 6 November 2026.

The 3 closest to this car in mileage:

• 2015 BMW 6 Series M Sport, 3.0 diesel convertible, black. Mileage: 87,000 miles. Price: £12,495, £905 less than this car. Dealer: Lindale Motors in Oldham. AskCar page: https://askcar.co.uk/car/bmw-6-series-2015-28907f2fd929
• 2015 BMW 6 Series M Sport, 3.0 diesel convertible, black. Mileage: 59,000 miles. Price: £15,995, £2,595 more than this car. Dealer: Eclipse Car Sales in Winchester. AskCar page: https://askcar.co.uk/car/bmw-6-series-2015-ab26f5ca29de
• 2015 BMW 6 Series M Sport, 3.0 diesel convertible, grey. Mileage: 107,306 miles. Price: £10,623, £2,777 less than this car. Dealer: Northridge Cars Hemel Hempstead in Hemel Hempstead. AskCar page: https://askcar.co.uk/car/bmw-6-series-2015-e33127da81b7