2018 BMW 6 Series Gran Turismo 3.0 630d M Sport

Overview

• Make: BMW
• Model: 6 Series Gran Turismo
• Trim: M Sport
• Version: 3.0 630d M Sport Auto RWD Euro 6 (s/s) 5dr GT (261 bhp)
• Year: 2018
• Mileage: 56,204 miles
• Fuel: Diesel
• Body: Hatchback, 5 doors, 5 seats
• Engine: 3.0 litres, 261 bhp
• Gearbox: Automatic
• Drive: Rear-wheel drive
• Colour: Grey
• CO2: 139 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

At 56,204 miles, this 2018 BMW 6 Series Gran Turismo M Sport has covered about 18,800 fewer miles than other 2018 BMW 6 Series Gran Turismo cars. The AskCar estimate for this car is £19,342. It is priced at £19,175, which is £167 below that estimate. To work out the AskCar estimate, we analyse UK dealer adverts for 77 BMW 6 Series Gran Turismo cars across different ages and specifications. Since we first spotted the advert 166 days ago, the asking price has dropped by £820. Its advertised mileage matches the government's MOT record. The seller is David Hayton Autostore Penrith, based in Penrith. How to contact the dealer and its opening hours are on this AskCar page.

Stock data as of 10 November 2026.

How we estimate prices and check cars

Price

Fair price: £167 (under 1%) under the AskCar estimate of £19,342.

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 77 priced BMW 6 Series Gran Turismo adverts across different ages and specifications, as of 10 November 2026.

A 2018 BMW 6 Series Gran Turismo with the 3.0 diesel engine is typically advertised at £16,500: the median of the 25 for sale on AskCar, as of 10 November 2026.

Time on sale

This 2018 BMW 6 Series Gran Turismo has been on sale for at least 166 days.

Price history

AskCar first saw this advert on 28 May 2026 at £19,995. Its asking price is now £19,175, £820 less. The latest price cut was seen on 21 October 2026.

Price changes recorded:

• 28 May 2026: £19,995
• 25 July 2026: £19,895
• 10 August 2026: £19,795
• 17 August 2026: £19,185
• 25 August 2026: £19,385
• 16 September 2026: £19,295
• 21 October 2026: £19,175

Mileage and MOT

MOT, from the government's MOT records (DVSA, the Driver and Vehicle Standards Agency), as of 10 November 2026: valid until 10 January 2027.

It failed its MOT on 17 December 2025 (offside front service brake excessively fluctuating; offside front lower windscreen damaged but not adversely affecting driver's view) and passed 1 day later, on 18 December 2025.

Advisories at the latest test: nearside rear inner brake pad(s) wearing thin; offside rear inner brake pad(s) wearing thin; offside front lower windscreen damaged but not adversely affecting driver's view; and 1 more.

Mileage at that test: 55,129 miles, which matches the advertised 56,204 miles.

Advertised mileage is about 18,800 miles lower than the median mileage of a 2018 BMW 6 Series Gran Turismo on AskCar.

Similar cars

19 other 2018 BMW 6 Series Gran Turismo M Sport 3.0 diesel automatic hatchbacks are for sale at UK dealers, from £11,845 to £19,994, as of 10 November 2026.

The 3 closest to this car in mileage:

• 2018 BMW 6 Series Gran Turismo M Sport, 3.0 diesel hatchback, black. Mileage: 53,091 miles. Price: £18,995, £180 less than this car. Dealer: Tenby Car Supermarket in Luton. AskCar page: https://askcar.co.uk/car/bmw-6-series-gran-turismo-2018-dae2fa9c2337
• 2018 BMW 6 Series Gran Turismo M Sport, 3.0 diesel hatchback, grey. Mileage: 60,673 miles. Price: £19,994, £819 more than this car. Dealer: Group 1 Reading BMW in Reading. AskCar page: https://askcar.co.uk/car/bmw-6-series-gran-turismo-2018-82d692ae22c6
• 2018 BMW 6 Series Gran Turismo M Sport, 3.0 diesel hatchback, white. Mileage: 62,115 miles. Price: £18,494, £681 less than this car. Dealer: Alisons Automotive Group in Cam. AskCar page: https://askcar.co.uk/car/bmw-6-series-gran-turismo-2018-1646099685d8

• The nearest: 2018 BMW 6 Series Gran Turismo M Sport, 3.0 diesel hatchback, black, 59 miles from this car. Mileage: 89,000 miles. Price: £15,999, £3,176 less than this car. Dealer: Manor Motors in Blackhall Colliery. AskCar page: https://askcar.co.uk/car/bmw-6-series-gran-turismo-2018-92b777208e03