2018 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: 2018
• Mileage: 10,210 miles
• Fuel: Diesel
• Body: Convertible, 2 doors, 4 seats
• Engine: 3.0 litres, 308 bhp
• Gearbox: Automatic
• Drive: Rear-wheel drive
• Colour: Grey
• CO2: 153 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

This 2018 BMW 6 Series M Sport has covered 10,210 miles. Priced at £27,495, it is advertised £459 above the AskCar estimate of £27,036. The AskCar estimate uses 159 UK dealer adverts for the BMW 6 Series, with adjustments for age, mileage, trim, engine and other specifications. We first saw this car advertised 55 days ago. Its asking price has since fallen by £2,000. We checked its advertised mileage against the government's MOT record, and they match. The seller is V12 Sports & Classics Ltd - Hinckley, based in Hinckley. How to contact the dealer and its opening hours are on this AskCar page.

Stock data as of 4 November 2026.

How we estimate prices and check cars

Price

Fair price: £459 (1%) over the AskCar estimate of £27,036.

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 159 priced BMW 6 Series adverts across different ages and specifications, as of 4 November 2026.

Time on sale

This 2018 BMW 6 Series has been on sale for at least 55 days.

Price history

AskCar first saw this advert on 10 September 2026 at £29,495. Its asking price is now £27,495, £2,000 less. The latest price cut was seen on 3 November 2026.

Price changes recorded:

• 10 September 2026: £29,495
• 3 November 2026: £27,495

Mileage and MOT

MOT, from the government's MOT records (DVSA, the Driver and Vehicle Standards Agency), as of 4 November 2026: valid until 2 October 2027.

It has had 6 MOTs. The latest, on 3 September 2026, passed.

Advisories at the latest test: nearside rear tyre worn close to legal limit/worn on edge inner edge; offside rear tyre worn close to legal limit/worn on edge inner edge; nearside front outer tyre has a cut but not deep enough to reach the ply or cords sidewall.

Mileage at that test: 10,176 miles, which matches the advertised 10,210 miles.

Similar cars

2 other 2018 BMW 6 Series M Sport 3.0 diesel automatic convertibles are for sale at UK dealers, from £20,995 to £25,995, as of 4 November 2026.

The 2 closest to this car in mileage:

• 2018 BMW 6 Series M Sport, 3.0 diesel convertible, blue. Mileage: 26,734 miles. Price: £25,995, £1,500 less than this car. Dealer: Brook Cars Company in Telford. AskCar page: https://askcar.co.uk/car/bmw-6-series-2018-af846f9e5195
• 2018 BMW 6 Series M Sport, 3.0 diesel convertible, blue. Mileage: 47,000 miles. Price: £20,995, £6,500 less than this car. Dealer: Autothentic in Tockwith. AskCar page: https://askcar.co.uk/car/bmw-6-series-2018-3ac69c9afb38