2018 BMW 6 Series Gran Turismo 3.0 640i

Overview

• Make: BMW
• Model: 6 Series Gran Turismo
• Version: 3.0 640i Auto 4WD Euro 6 (s/s) 5dr GT (335 bhp)
• Year: 2018
• Mileage: 117,039 miles
• Fuel: Petrol
• Body: Hatchback, 5 doors, 5 seats
• Engine: 3.0 litres, 335 bhp
• Gearbox: Automatic
• Drive: Four-wheel drive
• Colour: Black
• CO2: 186 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

This 2018 BMW 6 Series Gran Turismo has covered 117,039 miles, around 42,000 more miles than is typical for its age. Its asking price of £13,999 is £328 below the AskCar estimate of £14,327. The AskCar estimate uses UK dealer asking prices, including 76 BMW 6 Series Gran Turismo adverts, and accounts for the car’s age, mileage and specification. We first saw this car advertised 160 days ago. Its asking price has since fallen by £500. Our records show an MOT expiry date of 31 July 2026, which has passed. Ask the dealer for an update. According to the government's MOT record, its advertised mileage is consistent with the latest test. You can find this car at The Motor Group in Wisbech. How to contact the dealer and its opening hours are on this AskCar page.

Stock data as of 9 November 2026.

How we estimate prices and check cars

Price

Fair price: £328 (2%) under the AskCar estimate of £14,327.

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 76 priced BMW 6 Series Gran Turismo adverts across different ages and specifications, as of 9 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 9 November 2026.

Time on sale

This 2018 BMW 6 Series Gran Turismo has been on sale for at least 160 days.

Price history

AskCar first saw this advert on 2 June 2026 at £14,499. Its asking price is now £13,999, £500 less. The latest price cut was seen on 31 October 2026.

Price changes recorded:

• 2 June 2026: £14,499
• 31 October 2026: £13,999

Mileage and MOT

MOT, from the government's MOT records (DVSA, the Driver and Vehicle Standards Agency), as of 9 November 2026: the latest record we hold ran out on 31 July 2026; ask the dealer for the current MOT.

It has had 5 MOTs. The latest, on 17 July 2025, passed.

There were no advisories at the latest test.

Mileage at that test: 110,516 miles, which matches the advertised 117,039 miles.

Advertised mileage is about 42,000 miles higher than the median mileage of a 2018 BMW 6 Series Gran Turismo on AskCar.