2021 BMW X3 M 3.0 Competition

Overview

• Make: BMW
• Model: X3 M
• Trim: Competition
• Version: 3.0 i Competition Auto 4WD Euro 6 (s/s) 5dr (503 bhp)
• Year: 2021
• Mileage: 47,113 miles
• Fuel: Petrol
• Body: SUV, 5 doors, 5 seats
• Engine: 3.0 litres, 503 bhp
• Gearbox: Automatic
• Drive: Four-wheel drive
• Colour: Grey
• CO2: 248 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

This 2021 BMW X3 M Competition has covered 47,113 miles, around 13,100 more miles than is typical for its age. Its asking price of £47,600 is £2,813 above the AskCar estimate of £44,787. The AskCar estimate uses 130 UK dealer adverts for the BMW X3 M, with adjustments for age, mileage, trim, engine and other specifications. Since we first spotted the advert 86 days ago, the asking price has dropped by £4,400. According to the government's MOT record, its advertised mileage is consistent with the latest test. The seller is John Clark BMW Aberdeen, based in Aberdeen. 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: £2,813 (6%) over the AskCar estimate of £44,787.

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 130 priced BMW X3 M adverts across different ages and specifications, as of 5 November 2026.

A 2021 BMW X3 M with the 3.0 petrol engine is typically advertised at £46,700: the median of the 24 for sale on AskCar, as of 5 November 2026.

Time on sale

This 2021 BMW X3 M has been on sale for at least 86 days.

Price history

AskCar first saw this advert on 11 August 2026 at £52,000. Its asking price is now £47,600, £4,400 less. The latest price cut was seen on 2 November 2026.

Price changes recorded:

• 11 August 2026: £52,000
• 1 September 2026: £50,000
• 24 September 2026: £49,700
• 5 October 2026: £50,600
• 9 October 2026: £48,800
• 16 October 2026: £47,900
• 2 November 2026: £47,600

Mileage and MOT

MOT, from the government's MOT records (DVSA, the Driver and Vehicle Standards Agency), as of 5 November 2026: valid until 18 November 2026.

It has had 2 MOTs. The latest, on 19 November 2025, passed.

Advisories at the latest test: offside front nail in tyre.

Mileage at that test: 38,385 miles, which matches the advertised 47,113 miles.

Advertised mileage is about 13,100 miles higher than the median mileage of a 2021 BMW X3 M on AskCar.

Similar cars

20 other 2021 BMW X3 M Competition 3.0 petrol automatic SUVs are for sale at UK dealers, from £39,995 to £54,995, as of 5 November 2026.

The 3 closest to this car in mileage:

• 2021 BMW X3 M Competition, 3.0 petrol SUV, grey. Mileage: 43,979 miles. Price: £42,060, £5,540 less than this car. Dealer: Evans Halshaw Ford Coatbridge in Coatbridge. AskCar page: https://askcar.co.uk/car/bmw-x3-m-2021-419ac1562d89
• 2021 BMW X3 M Competition, 3.0 petrol SUV, black. Mileage: 52,000 miles. Price: £52,488, £4,888 more than this car. Dealer: Auto Group in Wembley. AskCar page: https://askcar.co.uk/car/bmw-x3-m-2021-b7782500a611
• 2021 BMW X3 M Competition, 3.0 petrol SUV, black. Mileage: 53,000 miles. Price: £43,495, £4,105 less than this car. Dealer: Sharman Group in Manchester. AskCar page: https://askcar.co.uk/car/bmw-x3-m-2021-303d31bae200