2020 BMW X6

3.0 40i M Sport Auto 4WD Euro 6 (s/s) 5dr (335 bhp)

£34,490

Good value: £4,021 under the typical £38,511 for this model, age and mileage, drawing on 523 adverts of this make and model.

Overview

Make
BMW
Model
X6
Trim
M SPORT
Version
3.0 40i M Sport Auto 4WD Euro 6 (s/s) 5dr (335 bhp)
Mileage
42,900 miles
Year
2020
Fuel type
Petrol
Body type
SUV
Engine
3.0 L
Gearbox
Automatic
Power
335 bhp
Seats
5
CO2
185 g/km
Colour
White
Doors
5
Driven wheels
Four Wheel Drive
Engine badge
40i
Emissions standard
Euro 6

About this car

At 42,900 miles, this 2020 BMW X6 M Sport has covered about 6,800 fewer miles than other 2020 BMW X6 cars. Our estimated market asking price is £38,511. This car is advertised at £34,490, which is £4,021 below that figure. Our estimate draws on 523 BMW X6 adverts across the UK, adjusting for age, mileage, trim, engine and other specifications. The asking price is now £1,060 lower than when we first recorded the advert 45 days ago. It is for sale at K Motors London in New Malden.

Stock data from 22 October 2026.

How we estimate prices and check cars

Price history

First seen on 8 September 2026, 45 days ago. Advert duration calculated on 23 October 2026. Net asking-price reduction: £1,060 from the first recorded £35,550. 2 price reductions recorded, the latest observed on 7 October 2026.

Recorded asking prices
Date observedAsking price
8 September 2026£35,550
29 September 2026£34,990
7 October 2026£34,490
22 October 2026£34,490

Price and mileage comparison

Estimated market asking price: £38,511. The asking price is £4,021 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 523 adverts of this make and model across different ages and specifications.

Advertised mileage is approximately 6,800 miles lower than typical for a 2020 BMW X6.

6 other cars with the same year, trim, gearbox and fuel are for sale from £30,885 to £40,771.

Other matching cars (up to five, cheapest first)
Asking priceMileage
£30,88580,829 miles
£32,99974,000 miles
£33,97551,000 miles
£35,00049,562 miles
£35,49051,800 miles

These cars have covered 49,562–80,829 miles, compared with 42,900 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 X6 cars for sale · 2020 BMW X6 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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