2021 BMW X4 M 3.0 Competition

Overview

• Make: BMW
• Model: X4 M
• Trim: Competition
• Version: 3.0 i Competition Auto 4WD Euro 6 (s/s) 5dr (503 bhp)
• Year: 2021
• Mileage: 47,999 miles
• Fuel: Petrol
• Body: SUV, 5 doors, 5 seats
• Engine: 3.0 litres, 503 bhp
• Gearbox: Automatic
• Drive: Four-wheel drive
• Colour: Grey
• CO2: 259 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

This 2021 BMW X4 M Competition has covered 47,999 miles. Its asking price of £40,990 is £868 above the AskCar estimate of £40,122. To work out the AskCar estimate, we analyse UK dealer adverts for 86 BMW X4 M cars across different ages and specifications. This car was first seen in our listings data 83 days ago. Ask the dealer why the advert shows fewer miles than the 52,417 recorded at the latest MOT. MOT records show an expiry date of 1 September 2027. It is for sale at Best4U Motors in Brentwood. 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: £868 (2%) over the AskCar estimate of £40,122.

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 86 priced BMW X4 M adverts across different ages and specifications, as of 5 November 2026.

A 2021 BMW X4 M with the 3.0 petrol engine is typically advertised at £40,000: the median of the 12 for sale on AskCar, as of 5 November 2026.

Time on sale

This 2021 BMW X4 M has been on sale for at least 83 days.

Price history

AskCar first saw this advert on 14 August 2026 at £40,990. Its asking price has not changed.

Mileage and MOT

MOT, from the government's MOT records (DVSA, the Driver and Vehicle Standards Agency), as of 5 November 2026: valid until 1 September 2027.

It has had 3 MOTs. The latest, on 2 September 2026, passed.

There were no advisories at the latest test.

Mileage at that test: 52,417 miles. The advert says 47,999 miles, fewer than the MOT record, so ask the dealer which is right.

Advertised mileage is about 800 miles lower than the median mileage of a 2021 BMW X4 M on AskCar.

Similar cars

11 other 2021 BMW X4 M Competition 3.0 petrol automatic SUVs are for sale at UK dealers, from £32,890 to £48,990, as of 5 November 2026.

The 3 closest to this car in mileage:

• 2021 BMW X4 M Competition, 3.0 petrol SUV, grey. Mileage: 47,380 miles. Price: £37,200, £3,790 less than this car. Dealer: Saxtons.co.uk in Chelmsford. AskCar page: https://askcar.co.uk/car/bmw-x4-m-2021-36f012a4b07d
• 2021 BMW X4 M Competition, 3.0 petrol SUV, black. Mileage: 46,627 miles. Price: £38,720, £2,270 less than this car. Dealer: Hippo Approved in Blackburn. AskCar page: https://askcar.co.uk/car/bmw-x4-m-2021-f255fe033287
• 2021 BMW X4 M Competition, 3.0 petrol SUV, blue. Mileage: 49,682 miles. Price: £41,500, £510 more than this car. Dealer: Sytner Leicester BMW in Leicester. AskCar page: https://askcar.co.uk/car/bmw-x4-m-2021-93f1580696ed