2018 BMW 6 Series Gran Turismo

3.0 630d M Sport Auto RWD Euro 6 (s/s) 5dr GT (261 bhp)

£18,500

Good value: £1,709 under the typical £20,209 for this model, age and mileage, drawing on 71 adverts of this make and model.

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)
Mileage: 49,012 miles
Year: 2018
Fuel type: Diesel
Body type: Hatchback
Engine: 3.0 L
Gearbox: Automatic
Power: 261 bhp
Seats: 5
CO2: 139 g/km
Colour: White
Doors: 5
Driven wheels: Rear Wheel Drive
Engine badge: 630d
Emissions standard: Euro 6

About this car

This 2018 BMW 6 Series Gran Turismo M Sport has covered 49,012 miles, around 34,400 fewer than typical for its age. At £18,500, it is advertised £1,709 below our estimated market asking price of £20,209. We use UK dealer asking prices, including 71 BMW 6 Series Gran Turismo listings, and account for the car’s age, mileage and specification. The asking price is now £600 lower than when we first recorded the advert 29 days ago. MOT records show an expiry date of 6 February 2027, and the latest recorded mileage is consistent with the advert. It is advertised by Car Planet Watford in Rickmansworth.

Stock data from 23 October 2026.

How we estimate prices and check cars

Price history

First seen on 27 September 2026, 29 days ago. Advert duration calculated on 26 October 2026. Net asking-price reduction: £600 from the first recorded £19,100. 2 price reductions recorded, the latest observed on 19 October 2026.

Recorded asking prices
Date observed	Asking price
27 September 2026	£19,100
12 October 2026	£18,800
19 October 2026	£18,500
23 October 2026	£18,500

Price and mileage comparison

Estimated market asking price: £20,209. The asking price is £1,709 below this estimate.

The estimate uses UK dealer asking prices, accounting for make, model, trim, version, age, mileage, fuel, gearbox, body type, driven wheels, engine size and power. It estimates an advertised price, not a confirmed sale price.

The pricing calculation includes 71 adverts of this make and model across different ages and specifications.

Advertised mileage is approximately 34,400 miles lower than typical for a 2018 BMW 6 Series Gran Turismo.

The advertised mileage is consistent with the last MOT reading.

MOT

MOT valid until 6 February 2027. 41,917 miles at the last test.

16 other cars with the same year, trim, gearbox and fuel are for sale from £11,995 to £19,175.

Other matching cars (up to five, cheapest first)
Asking price	Mileage
£11,995	130,785 miles
£12,995	108,163 miles
£13,000	111,646 miles
£14,200	90,000 miles
£14,999	106,174 miles

These cars have covered 56,204–130,785 miles, compared with 49,012 miles for this car.

Matching year, trim, gearbox and fuel does not mean matching mileage or every specification. Our estimate adjusts for these differences using the wider market data.

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

How to contact the dealer, its opening hours and the cheaper cars like this one are on this AskCar page.

Vehicle photos

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