2018 BMW 6 Series Gran Coupe 3.0 640d M Sport

Version: 3.0 640d M Sport Auto RWD Euro 6 (s/s) 4dr (309 bhp)

Price: £18,495. Fair price: £824 (4%) under the AskCar estimate of £19,319, our expected asking price for this car from its model, age, mileage and specification, drawing on 105 priced BMW 6 Series Gran Coupe adverts on AskCar as of 31 October 2026.

AskCar lists 107 used BMW 6 Series Gran Coupe from 95 UK dealerships, as of 31 October 2026.

Overview

Make
BMW
Model
6 Series Gran Coupe
Trim
M Sport
Version
3.0 640d M Sport Auto RWD Euro 6 (s/s) 4dr (309 bhp)
Mileage
60,700 miles
Year
2018
Fuel type
Diesel
Body type
Saloon
Engine
3.0 L
Gearbox
Automatic
Power
309 bhp
Seats
5
CO2
152 g/km
Colour
Black
Doors
4
Driven wheels
Rear Wheel Drive
Engine badge
640d
Emissions standard
Euro 6

About this car

This 2018 BMW 6 Series Gran Coupe M Sport is advertised with 60,700 miles on the clock. Its asking price of £18,495 is £824 below the AskCar estimate of £19,319. The AskCar estimate draws on 105 BMW 6 Series Gran Coupe adverts across the UK, adjusting for age, mileage, trim, engine and other specifications. It first appeared in our advert records today. The latest MOT record shows an expiry date of 25 April 2027, with the advertised mileage consistent with the recorded reading. It is for sale at BM Automotive (Sw) in Saltash.

Stock data as of 31 October 2026.

How we estimate prices and check cars

Price history

AskCar first saw this advert on 31 October 2026.

Recorded asking prices
Date observedAsking price
31 October 2026£18,495

Price and mileage comparison

Fair price: £824 (4%) under the AskCar estimate of £19,319.

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 105 priced BMW 6 Series Gran Coupe adverts across different ages and specifications, as of 31 October 2026.

The advertised mileage is consistent with the last MOT reading.

MOT

MOT: valid until 25 April 2027. 54,696 miles at the last test.

Other matching cars

18 other 2018 BMW 6 Series Gran Coupe M Sport automatic diesel cars are for sale at UK dealers from £15,495 to £27,995, as of 31 October 2026.

The 5 cheapest:

The 18 matching cars have covered 8,000 to 86,833 miles, compared with 60,700 miles for this car.

Matching year, trim, gearbox and fuel does not mean matching mileage or every specification. The AskCar estimate adjusts for these differences.

Browse all BMW 6 Series Gran Coupe cars for sale · 2018 BMW 6 Series Gran Coupe price guide

More like this

Photos

6 photos of this car are on its AskCar page.

How to contact the dealer and its opening hours are on this AskCar page.

As of 31 October 2026, AskCar lists 583,548 cars and vans from 12,716 UK dealerships, read daily from dealer websites: over 99% of UK dealer used car adverts. No dealer pays to be listed.