2017 BMW 6 Series 3.0 640i M Sport

Price: £16,500. Good value: £2,340 (12%) under the AskCar estimate of £18,840, our expected asking price for this car from its model, age, mileage and specification, drawing on 159 priced BMW 6 Series adverts on AskCar as of 4 November 2026.

AskCar lists 179 used BMW 6 Series from 153 UK dealerships, as of 4 November 2026.

Overview

  • Make: BMW
  • Model: 6 Series
  • Trim: M Sport
  • Version: 3.0 640i M Sport Auto RWD Euro 6 2dr (315 bhp)
  • Year: 2017
  • Mileage: 52,104 miles
  • Fuel: Petrol
  • Body: Coupe, 2 doors, 4 seats
  • Engine: 3.0 litres, 315 bhp
  • Gearbox: Automatic
  • Drive: Rear-wheel drive
  • Colour: White
  • CO2: 180 g/km
  • Emissions standard: Euro 6, ULEZ compliant

About this car

At 52,104 miles, this 2017 BMW 6 Series M Sport has covered about 10,300 fewer miles than other 2017 BMW 6 Series cars. The AskCar estimate for this car is £18,840. It is priced at £16,500, which is £2,340 below that estimate. The AskCar estimate uses UK dealer asking prices, including 159 BMW 6 Series adverts, and accounts for the car’s age, mileage and specification. We first recorded this advert 35 days ago, and its asking price has since fallen by £800. Its advertised mileage matches the government's MOT record. It is advertised by Car Planet Watford in Rickmansworth. How to contact the dealer and its opening hours are on this AskCar page.

Stock data as of 4 November 2026.

How we estimate prices and check cars

Price

Good value: £2,340 (12%) under the AskCar estimate of £18,840.

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 159 priced BMW 6 Series adverts across different ages and specifications, as of 4 November 2026.

Time on sale

This 2017 BMW 6 Series has been on sale for at least 35 days.

Price history

AskCar first saw this advert on 30 September 2026 at £17,300. Its asking price is now £16,500, £800 less. The latest price cut was seen on 1 November 2026.

Price changes recorded:

  • 30 September 2026: £17,300
  • 12 October 2026: £17,150
  • 19 October 2026: £16,900
  • 26 October 2026: £16,600
  • 1 November 2026: £16,500

Mileage and MOT

MOT, from the government's MOT records (DVSA, the Driver and Vehicle Standards Agency), as of 4 November 2026: valid until 20 March 2027.

It has had 8 MOTs. The latest, on 21 March 2026, passed.

Advisories at the latest test: nearside rear tyre worn close to legal limit/worn on edge; offside front tyre worn close to legal limit/worn on edge.

Mileage at that test: 49,766 miles, which matches the advertised 52,104 miles.

Advertised mileage is about 10,300 miles lower than the median mileage of a 2017 BMW 6 Series on AskCar.

Browse all BMW 6 Series cars for sale · 2017 BMW 6 Series price guide

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Photos

37 photos of this car are on its AskCar page.

As of 4 November 2026, AskCar lists 592,552 cars and vans from 12,964 UK dealerships, read daily from dealer websites: over 99% of UK dealer used car adverts. No dealer pays to be listed.