2020 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: 2020
• Mileage: 43,499 miles
• Fuel: Petrol
• Body: SUV, 5 doors, 5 seats
• Engine: 3.0 litres, 503 bhp
• Gearbox: Automatic
• Drive: Four-wheel drive
• Colour: Blue
• CO2: 239 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

This 2020 BMW X3 M Competition is advertised with 43,499 miles, approximately 7,600 below the typical mileage for its age. Priced at £41,499, it is advertised £1,269 below the AskCar estimate of £42,768. The AskCar estimate draws on 130 BMW X3 M adverts across the UK, adjusting for age, mileage, trim, engine and other specifications. We first recorded this advert 86 days ago, and its asking price has since fallen by £2,496. According to the government's MOT record, its advertised mileage is consistent with the latest test. It is for sale at Acorn Specialist Cars in Stone. 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: £1,269 (2%) under the AskCar estimate of £42,768.

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 2020 BMW X3 M with the 3.0 petrol engine is typically advertised at £39,500: the median of the 16 for sale on AskCar, as of 5 November 2026.

Time on sale

This 2020 BMW X3 M has been on sale for at least 86 days.

Price history

AskCar first saw this advert on 11 August 2026 at £43,995. Its asking price is now £41,499, £2,496 less. The latest price cut was seen on 5 November 2026.

Price changes recorded:

• 11 August 2026: £43,995
• 20 August 2026: £43,771
• 23 August 2026: £43,250
• 26 August 2026: £42,995
• 8 September 2026: £42,299
• 18 September 2026: £41,995
• 20 September 2026: £41,495
• 30 September 2026: £41,000
• 6 October 2026: £41,329
• 7 October 2026: £41,499
• 20 October 2026: £41,523
• 5 November 2026: £41,499

Mileage and MOT

MOT, from the government's MOT records (DVSA, the Driver and Vehicle Standards Agency), as of 5 November 2026: valid until 16 June 2027.

It has had 4 MOTs. The latest, on 8 June 2026, passed.

Advisories at the latest test: nearside rear child seat fitted not allowing full inspection of adult belt; offside rear child seat fitted not allowing full inspection of adult belt; nearside front inner tyre worn close to legal limit/worn on edge 2.7mm wearing inner; and 1 more.

Mileage at that test: 42,137 miles, which matches the advertised 43,499 miles.

Advertised mileage is about 7,600 miles lower than the median mileage of a 2020 BMW X3 M on AskCar.

Similar cars

13 other 2020 BMW X3 M Competition 3.0 petrol automatic SUVs are for sale at UK dealers, from £31,995 to £44,990, as of 5 November 2026.

The 3 closest to this car in mileage:

• 2020 BMW X3 M Competition, 3.0 petrol SUV, grey. Mileage: 45,128 miles. Price: £42,495, £996 more than this car. Dealer: EAG Specialist Cars in St Neots. AskCar page: https://askcar.co.uk/car/bmw-x3-m-2020-02169c93987a
• 2020 BMW X3 M Competition, 3.0 petrol SUV, blue. Mileage: 38,938 miles. Price: £38,998, £2,501 less than this car. Dealer: Arnold Clark Manchester Vauxhall in Manchester. AskCar page: https://askcar.co.uk/car/bmw-x3-m-2020-ba74876be31e
• 2020 BMW X3 M Competition, 3.0 petrol SUV, grey. Mileage: 33,755 miles. Price: £44,990, £3,491 more than this car. Dealer: Saltmarine Cars in Dungannon. AskCar page: https://askcar.co.uk/car/bmw-x3-m-2020-e759a98cab26

• The nearest: 2020 BMW X3 M Competition, 3.0 petrol SUV, grey, 41 miles from this car. Mileage: 57,000 miles. Price: £37,895, £3,604 less than this car. Dealer: HK Performance in Manchester. AskCar page: https://askcar.co.uk/car/bmw-x3-m-2020-7449fbb13909