2023 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: 2023
• Mileage: 42,000 miles
• Fuel: Petrol
• Body: SUV, 5 doors, 5 seats
• Engine: 3.0 litres, 503 bhp
• Gearbox: Automatic
• Drive: Four-wheel drive
• Colour: Grey
• CO2: 247 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

This 2023 BMW X3 M Competition is advertised with 42,000 miles, approximately 15,000 above the typical mileage for its age. Priced at £58,000, it is advertised £3,867 above the AskCar estimate of £54,133. The AskCar estimate draws on 129 BMW X3 M adverts across the UK, adjusting for age, mileage, trim, engine and other specifications. This car was first seen in our listings data 32 days ago. According to the government's MOT record, its advertised mileage is consistent with the latest test. The seller is Sytner Stevenage BMW, based in Stevenage. How to contact the dealer and its opening hours are on this AskCar page.

Stock data as of 8 November 2026.

How we estimate prices and check cars

Price

Fair price: £3,867 (7%) over the AskCar estimate of £54,133.

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 129 priced BMW X3 M adverts across different ages and specifications, as of 8 November 2026.

A 2023 BMW X3 M with the 3.0 petrol engine is typically advertised at £58,800: the median of the 18 for sale on AskCar, as of 8 November 2026.

Time on sale

This 2023 BMW X3 M has been on sale for at least 32 days.

Price history

AskCar first saw this advert on 7 October 2026 at £58,000. 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 8 November 2026: valid until 1 June 2027.

It has had one MOT, on 1 June 2026, and passed.

There were no advisories at the latest test.

Mileage at that test: 37,933 miles, which matches the advertised 42,000 miles.

Advertised mileage is about 15,000 miles higher than the median mileage of a 2023 BMW X3 M on AskCar.

Similar cars

17 other 2023 BMW X3 M Competition 3.0 petrol automatic SUVs are for sale at UK dealers, from £46,995 to £65,323, as of 8 November 2026.

The 3 closest to this car in mileage:

• 2023 BMW X3 M Competition, 3.0 petrol SUV, blue. Mileage: 33,500 miles. Price: £59,990, £1,990 more than this car. Dealer: Auto Venue in Newport. AskCar page: https://askcar.co.uk/car/bmw-x3-m-2023-35a018a12f75
• 2023 BMW X3 M Competition, 3.0 petrol SUV, blue. Mileage: 32,000 miles. Price: £56,980, £1,020 less than this car. Dealer: Auto100.Co.Uk in Sutton in Ashfield. AskCar page: https://askcar.co.uk/car/bmw-x3-m-2023-846d7a218ca7
• 2023 BMW X3 M Competition, 3.0 petrol SUV, black. Mileage: 30,923 miles. Price: £56,999, £1,001 less than this car. Dealer: cinch in Bournemouth. AskCar page: https://askcar.co.uk/car/bmw-x3-m-2023-5da3ca7a9edc

• The nearest: 2023 BMW X3 M Competition, 3.0 petrol SUV, blue, 14 miles from this car. Mileage: 22,000 miles. Price: £58,950, £950 more than this car. Dealer: AutoVero in Much Hadham. AskCar page: https://askcar.co.uk/car/bmw-x3-m-2023-ef0630bbaf80