2018 BMW 6 Series Gran Turismo 3.0 640i M Sport

Overview

• Make: BMW
• Model: 6 Series Gran Turismo
• Trim: M Sport
• Version: 3.0 640i M Sport Auto 4WD Euro 6 (s/s) 5dr GT (335 bhp)
• Year: 2018
• Mileage: 49,029 miles
• Fuel: Petrol
• Body: Hatchback, 5 doors, 5 seats
• Engine: 3.0 litres, 335 bhp
• Gearbox: Automatic
• Drive: Four-wheel drive
• Colour: Grey
• CO2: 187 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

At 49,029 miles, this 2018 BMW 6 Series Gran Turismo M Sport has covered about 26,000 fewer miles than other 2018 BMW 6 Series Gran Turismo cars. Priced at £21,475, it is advertised £1,237 below the AskCar estimate of £22,712. The AskCar estimate draws on 77 BMW 6 Series Gran Turismo adverts across the UK, adjusting for age, mileage, trim, engine and other specifications. We have tracked this advert for 8 days. Its advertised mileage matches the government's MOT record. The seller is PCBS Sales, based in Willenhall. How to contact the dealer and its opening hours are on this AskCar page.

Stock data as of 11 November 2026.

How we estimate prices and check cars

Price

Fair price: £1,237 (5%) under the AskCar estimate of £22,712.

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 11 November 2026.

A 2018 BMW 6 Series Gran Turismo with the 3.0 petrol engine is typically advertised at £16,500: the median of the 25 for sale on AskCar, as of 11 November 2026.

Time on sale

This 2018 BMW 6 Series Gran Turismo has been on sale for at least 8 days.

Price history

AskCar first saw this advert on 3 November 2026 at £21,475. 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 11 November 2026: valid until 11 June 2027.

It has had 9 MOTs. The latest, on 20 May 2026, passed.

There were no advisories at the latest test.

Mileage at that test: 48,038 miles, which matches the advertised 49,029 miles.

Advertised mileage is about 26,000 miles lower than the median mileage of a 2018 BMW 6 Series Gran Turismo on AskCar.

Similar cars

2 other 2018 BMW 6 Series Gran Turismo M Sport 3.0 petrol automatic hatchbacks are for sale at UK dealers, from £21,750 to £24,490, as of 11 November 2026.

The 2 closest to this car in mileage:

• 2018 BMW 6 Series Gran Turismo M Sport, 3.0 petrol hatchback, grey. Mileage: 46,587 miles. Price: £24,490, £3,015 more than this car. Dealer: AS Cars (UK) in Dunstable. AskCar page: https://askcar.co.uk/car/bmw-6-series-gran-turismo-2018-322788d79ba1
• 2018 BMW 6 Series Gran Turismo M Sport, 3.0 petrol hatchback, grey. Mileage: 57,197 miles. Price: £21,750, £275 more than this car. Dealer: Sytner Select Northampton in Northampton. AskCar page: https://askcar.co.uk/car/bmw-6-series-gran-turismo-2018-ef938934414b