2020 BMW X6 M 4.4 i V8 Competition

Price: £46,100. Fair price: £3,173 (6%) under the AskCar estimate of £49,273, our expected asking price for this car from its model, age, mileage and specification, drawing on 53 priced BMW X6 M adverts on AskCar as of 5 November 2026.

AskCar lists 55 used BMW X6 M from 53 UK dealerships, as of 5 November 2026.

Overview

  • Make: BMW
  • Model: X6 M
  • Trim: Competition
  • Version: 4.4 i V8 Competition Auto 4WD Euro 6 (s/s) 5dr (616 bhp)
  • Year: 2020
  • Mileage: 46,692 miles
  • Fuel: Petrol
  • Body: SUV, 5 doors, 5 seats
  • Engine: 4.4 litres, 616 bhp
  • Gearbox: Automatic
  • Drive: Four-wheel drive
  • Colour: Black
  • CO2: 303 g/km
  • Emissions standard: Euro 6, ULEZ compliant

About this car

The advertised mileage for this 2020 BMW X6 M Competition is 46,692 miles. Its asking price of £46,100 is £3,173 below the AskCar estimate of £49,273. The AskCar estimate draws on 53 BMW X6 M adverts across the UK, adjusting for age, mileage, trim, engine and other specifications. Since we first spotted the advert 65 days ago, the asking price has dropped by £3,890. According to the government's MOT record, its advertised mileage is consistent with the latest test. The seller is Marshall BMW Scunthorpe, based in Scunthorpe. How to contact the dealer and its opening hours are on this AskCar page.

Stock data as of 5 November 2026.

How we estimate prices and check cars

Price

Fair price: £3,173 (6%) under the AskCar estimate of £49,273.

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 53 priced BMW X6 M adverts across different ages and specifications, as of 5 November 2026.

Time on sale

This 2020 BMW X6 M has been on sale for at least 65 days.

Price history

AskCar first saw this advert on 1 September 2026 at £49,990. Its asking price is now £46,100, £3,890 less. The latest price cut was seen on 27 October 2026.

Price changes recorded:

  • 2 September 2026: £49,990
  • 11 September 2026: £49,200
  • 17 September 2026: £48,800
  • 25 September 2026: £47,900
  • 2 October 2026: £47,300
  • 17 October 2026: £47,100
  • 23 October 2026: £46,800
  • 27 October 2026: £46,100

Mileage and MOT

MOT, from the government's MOT records (DVSA, the Driver and Vehicle Standards Agency), as of 5 November 2026: valid until 20 December 2026.

It has had 5 MOTs. The latest, on 27 November 2025, passed.

There were no advisories at the latest test.

Mileage at that test: 37,629 miles, which matches the advertised 46,692 miles.

Similar cars

6 other 2020 BMW X6 M Competition 4.4 petrol automatic SUVs are for sale at UK dealers, from £47,990 to £54,995, as of 5 November 2026.

The 3 closest to this car in mileage:

  • 2020 BMW X6 M Competition, 4.4 petrol SUV, black. Mileage: 49,000 miles. Price: £51,990, £5,890 more than this car. Dealer: Benz Bavarian in Derby. AskCar page: https://askcar.co.uk/car/bmw-x6-m-2020-bf537c4c869f
  • 2020 BMW X6 M Competition, 4.4 petrol SUV, black. Mileage: 35,200 miles. Price: £52,600, £6,500 more than this car. Dealer: Reverie Autos in Hatfield. AskCar page: https://askcar.co.uk/car/bmw-x6-m-2020-fd20837f8411
  • 2020 BMW X6 M Competition, 4.4 petrol SUV, grey. Mileage: 58,647 miles. Price: £47,990, £1,890 more than this car. Dealer: Auto Unit in Newport. AskCar page: https://askcar.co.uk/car/bmw-x6-m-2020-f1ea7caad524
  • The nearest: 2020 BMW X6 M Competition, 4.4 petrol SUV, blue, 47 miles from this car. Mileage: 31,900 miles. Price: £53,995, £7,895 more than this car. Dealer: Hitchfields in Huddersfield. AskCar page: https://askcar.co.uk/car/bmw-x6-m-2020-628cdf362b4e

Browse all BMW X6 M cars for sale · 2020 BMW X6 M price guide

More like this

Photos

39 photos of this car are on its AskCar page.

As of 5 November 2026, AskCar lists 595,776 cars and vans from 12,945 UK dealerships, read daily from dealer websites: over 99% of UK dealer used car adverts. No dealer pays to be listed.