2021 BMW X4 3.0 M Sport

Overview

• Make: BMW
• Model: X4
• Trim: M Sport
• Version: 3.0 MHT M Sport Auto 4WD Euro 6 5dr
• Year: 2021
• Mileage: 73,388 miles
• Fuel: Diesel, mild hybrid
• Body: SUV, 5 doors, 5 seats
• Engine: 3.0 litres
• Gearbox: Automatic
• Drive: Four-wheel drive
• Colour: Blue
• CO2: 166 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

This 2021 BMW X4 M Sport has covered 73,388 miles, around 25,200 more miles than is typical for its age. The AskCar estimate for this car is £24,524. It is priced at £28,500, which is £3,976 above that estimate. The AskCar estimate draws on 650 BMW X4 adverts across the UK, adjusting for age, mileage, trim, engine and other specifications. Since we first spotted the advert 31 days ago, the asking price has dropped by £1,250. We checked its advertised mileage against the government's MOT record, and they match. It is for sale at Unit One Automotive in Horsham. 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

Above the going rate: £3,976 (16%) over the AskCar estimate of £24,524.

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

A 2021 BMW X4 with the 3.0 diesel engine is typically advertised at £28,500: the median of the 18 for sale on AskCar, as of 5 November 2026.

Time on sale

This 2021 BMW X4 has been on sale for at least 31 days.

Price history

AskCar first saw this advert on 5 October 2026 at £29,750. Its asking price is now £28,500, £1,250 less. The latest price cut was seen on 28 October 2026.

Price changes recorded:

• 5 October 2026: £29,750
• 18 October 2026: £28,850
• 28 October 2026: £28,500

Mileage and MOT

MOT, from the government's MOT records (DVSA, the Driver and Vehicle Standards Agency), as of 5 November 2026: valid until 7 September 2027.

It has had 3 MOTs. The latest, on 8 September 2026, passed.

There were no advisories at the latest test.

Mileage at that test: 72,937 miles, which matches the advertised 73,388 miles.

Advertised mileage is about 25,200 miles higher than the median mileage of a 2021 BMW X4 on AskCar.

Similar cars

9 other 2021 BMW X4 M Sport 3.0 diesel automatic SUVs are for sale at UK dealers, from £18,975 to £31,999, as of 5 November 2026.

The 3 closest to this car in mileage:

• 2021 BMW X4 M Sport, 3.0 diesel SUV, black. Mileage: 75,510 miles. Price: £23,500, £5,000 less than this car. Dealer: R S Car Sales in Crewe. AskCar page: https://askcar.co.uk/car/bmw-x4-2021-1a60c9c83c23
• 2021 BMW X4 M Sport, 3.0 diesel SUV, black. Mileage: 57,450 miles. Price: £26,994, £1,506 less than this car. Dealer: Tt Sports & Prestige Cars in Derby. AskCar page: https://askcar.co.uk/car/bmw-x4-2021-38d66e7ea1c7
• 2021 BMW X4 M Sport, 3.0 diesel SUV, blue. Mileage: 55,272 miles. Price: £25,700, £2,800 less than this car. Dealer: John Clark BMW Aberdeen in Aberdeen. AskCar page: https://askcar.co.uk/car/bmw-x4-2021-b926baccdc3e

• The nearest: 2021 BMW X4 M Sport, 3.0 diesel SUV, silver, 28 miles from this car. Mileage: 33,783 miles. Price: £27,727, £773 less than this car. Dealer: Prestige Cars Kent in Bromley. AskCar page: https://askcar.co.uk/car/bmw-x4-2021-86e4dd507252