2020 BMW X6

3.0 M50d Auto 4WD Euro 6 (s/s) 5dr (395 bhp)

£40,470

Fair price: within 8% of the typical £41,788 for this model, age and mileage, drawing on 514 adverts of this make and model.

Overview

Make: BMW
Model: X6
Version: 3.0 M50d Auto 4WD Euro 6 (s/s) 5dr (395 bhp)
Mileage: 41,892 miles
Year: 2020
Fuel type: Diesel
Body type: SUV
Engine: 3.0 L
Gearbox: Automatic
Power: 395 bhp
Seats: 5
CO2: 218 g/km
Colour: Black
Doors: 5
Driven wheels: Four Wheel Drive
Engine badge: M50d
Emissions standard: Euro 6

About this car

With 41,892 miles on the clock, this 2020 BMW X6 has done roughly 8,200 fewer miles than a typical 2020 BMW X6. The dealer is asking £40,470, which is £1,318 below our market estimate of £41,788. Our estimate draws on 514 BMW X6 adverts across the UK, adjusting for age, mileage, trim, engine and other specifications. We have tracked this advert for 11 days. Its MOT is recorded as valid until 11 November 2026. The advertised mileage is consistent with the latest MOT reading. It is for sale at Sytner Harold Wood BMW in Romford.

Stock data from 20 October 2026.

How we estimate prices and check cars

Price history

First seen on 10 October 2026, 11 days ago. Advert duration calculated on 21 October 2026.

Recorded asking prices
Date observed	Asking price
10 October 2026	£40,470
20 October 2026	£40,470

Price and mileage comparison

Estimated market asking price: £41,788. The asking price is £1,318 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 514 adverts of this make and model across different ages and specifications.

Advertised mileage is approximately 8,200 miles lower than typical for a 2020 BMW X6.

The advertised mileage is consistent with the last MOT reading.

MOT

MOT valid until 11 November 2026. 40,488 miles at the last test.

8 other cars with the same year, trim, gearbox and fuel are for sale from £34,995 to £44,950.

Other matching cars (up to five, cheapest first)
Asking price	Mileage
£34,995	96,000 miles
£37,420	46,835 miles
£37,485	71,000 miles
£38,300	45,482 miles
£38,995	77,389 miles

These cars have covered 36,209–96,000 miles, compared with 41,892 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

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Dealer

Sytner Harold Wood BMW, Romford. Across the dealer network: 140 branches, 10,337 cars for sale.

Dealer postcode: RM3 0GX.

Dealer opening hours

Monday: 08:30-18:00
Tuesday: 08:30-18:00
Wednesday: 08:30-18:00
Thursday: 08:30-18:00
Friday: 08:30-18:00
Saturday: 09:00-17:00
Sunday: 10:00-16:00