2018 BMW 6 Series 4.4 M Sport

Overview

• Make: BMW
• Model: 6 Series
• Trim: M Sport
• Version: 4.4 650i M Sport Auto RWD Euro 6 2dr (442 bhp)
• Year: 2018
• Mileage: 25,000 miles
• Fuel: Petrol
• Body: Convertible, 2 doors, 4 seats
• Engine: 4.4 litres, 442 bhp
• Gearbox: Automatic
• Drive: Rear-wheel drive
• Colour: Black
• CO2: 213 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

This 2018 BMW 6 Series M Sport has covered 25,000 miles. The AskCar estimate for this car is £30,358. It is priced at £27,990, which is £2,368 below that estimate. The AskCar estimate draws on 162 BMW 6 Series adverts across the UK, adjusting for age, mileage, trim, engine and other specifications. We first recorded this advert 137 days ago, and its asking price has since fallen by £2,000. The last MOT shows 25,708 miles, more than the advert. This is worth checking with the dealer. The latest recorded MOT expires on 15 June 2027. It is advertised by LTV in Bury. How to contact the dealer and its opening hours are on this AskCar page.

Stock data as of 2 November 2026.

How we estimate prices and check cars

Price

Fair price: £2,368 (7%) under the AskCar estimate of £30,358.

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 162 priced BMW 6 Series adverts across different ages and specifications, as of 2 November 2026.

Time on sale

This 2018 BMW 6 Series has been on sale for at least 137 days.

Price history

AskCar first saw this advert on 18 June 2026 at £29,990. Its asking price is now £27,990, £2,000 less. The latest price cut was seen on 14 September 2026.

Price changes recorded:

• 18 June 2026: £29,990
• 31 July 2026: £28,990
• 14 September 2026: £27,990

Mileage and MOT

MOT, from the government's MOT records (DVSA, the Driver and Vehicle Standards Agency), as of 2 November 2026: valid until 15 June 2027.

It has had 8 MOTs. The latest, on 16 June 2026, passed.

There were no advisories at the latest test.

Mileage at that test: 25,708 miles. The advert says 25,000 miles, fewer than the MOT record, so ask the dealer which is right.

Similar cars

1 other 2018 BMW 6 Series M Sport 4.4 petrol automatic convertible is for sale at UK dealers, as of 2 November 2026.

The closest to this car in mileage:

• 2018 BMW 6 Series M Sport, 4.4 petrol convertible, grey. Mileage: 35,926 miles. Price: £26,990, £1,000 less than this car. Dealer: Braidwood Motor Company in Livingston. AskCar page: https://askcar.co.uk/car/bmw-6-series-2018-1b02bf74ee7e