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: 45,128 miles
• Fuel: Petrol
• Body: SUV, 5 doors, 5 seats
• Engine: 3.0 litres, 503 bhp
• Gearbox: Automatic
• Drive: Four-wheel drive
• Colour: Grey
• CO2: 239 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

This 2020 BMW X3 M Competition has covered 45,128 miles. Its asking price of £42,495 is £203 above the AskCar estimate of £42,292. The AskCar estimate draws on 128 BMW X3 M adverts across the UK, adjusting for age, mileage, trim, engine and other specifications. We first recorded this car for sale 9 days ago. The latest recorded MOT expiry date is 13 October 2026, which has passed. Confirm its status with the dealer. We checked its advertised mileage against the government's MOT record, and they match. It is for sale at EAG Specialist Cars in St Neots. How to contact the dealer and its opening hours are on this AskCar page.

Stock data as of 7 November 2026.

How we estimate prices and check cars

Price

Fair price: £203 (under 1%) over the AskCar estimate of £42,292.

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 128 priced BMW X3 M adverts across different ages and specifications, as of 7 November 2026.

A 2020 BMW X3 M with the 3.0 petrol engine is typically advertised at £40,000: the median of the 15 for sale on AskCar, as of 7 November 2026.

Time on sale

This 2020 BMW X3 M has been on sale for at least 9 days.

Price history

AskCar first saw this advert on 29 October 2026 at £42,495. 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 7 November 2026: the latest record we hold ran out on 13 October 2026; ask the dealer for the current MOT.

It has had 3 MOTs. The latest, on 13 October 2025, passed.

There were no advisories at the latest test.

Mileage at that test: 35,137 miles, which matches the advertised 45,128 miles.

Similar cars

12 other 2020 BMW X3 M Competition 3.0 petrol automatic SUVs are for sale at UK dealers, from £34,999 to £44,990, as of 7 November 2026.

The 3 closest to this car in mileage:

• 2020 BMW X3 M Competition, 3.0 petrol SUV, blue. Mileage: 43,499 miles. Price: £41,399, £1,096 less than this car. Dealer: Acorn Specialist Cars in Stone. AskCar page: https://askcar.co.uk/car/bmw-x3-m-2020-6a7f3887ec94
• 2020 BMW X3 M Competition, 3.0 petrol SUV, blue. Mileage: 38,938 miles. Price: £38,998, £3,497 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, £2,495 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, 29 miles from this car. Mileage: 79,000 miles. Price: £34,999, £7,496 less than this car. Dealer: Waterways Prestige in Leighton Buzzard. AskCar page: https://askcar.co.uk/car/bmw-x3-m-2020-c720a0736060