2023 BMW M4 3.0 BiTurbo Competition

Overview

• Make: BMW
• Model: M4
• Trim: Competition
• Version: 3.0 BiTurbo Competition Steptronic 4WD Euro 6 (s/s) 2dr M (503 bhp)
• Year: 2023
• Mileage: 25,413 miles
• Fuel: Petrol
• Body: Convertible, 2 doors, 4 seats
• Engine: 3.0 litres, 503 bhp
• Gearbox: Automatic (Steptronic)
• Drive: Four-wheel drive
• Colour: Grey
• CO2: 233 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

This 2023 BMW M4 Competition is advertised with 25,413 miles, approximately 6,600 above the typical mileage for its age. The dealer is asking £55,999, which is £2,163 above the AskCar estimate of £53,836. To work out the AskCar estimate, we analyse UK dealer adverts for 738 BMW M4 cars across different ages and specifications. We first saw this car advertised 88 days ago. Its asking price has since fallen by £3,000. The government's MOT record matches its advertised mileage. You can find this car at Sandles Cars in Kings Lynn. How to contact the dealer and its opening hours are on this AskCar page.

Stock data as of 2 November 2026.

How we estimate prices and check cars

Price

Fair price: £2,163 (4%) over the AskCar estimate of £53,836.

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 738 priced BMW M4 adverts across different ages and specifications, as of 2 November 2026.

A 2023 BMW M4 with the 3.0 petrol engine is typically advertised at £55,000: the median of the 82 for sale on AskCar, as of 2 November 2026.

Time on sale

This 2023 BMW M4 has been on sale for at least 88 days.

Price history

AskCar first saw this advert on 6 August 2026 at £58,999. Its asking price is now £55,999, £3,000 less. The latest price cut was seen on 27 October 2026.

Price changes recorded:

• 7 August 2026: £58,999
• 26 August 2026: £58,499
• 9 September 2026: £57,999
• 23 September 2026: £57,499
• 9 October 2026: £57,299
• 14 October 2026: £56,999
• 21 October 2026: £56,499
• 27 October 2026: £55,999

Mileage and MOT

MOT, from the government's MOT records (DVSA, the Driver and Vehicle Standards Agency), as of 2 November 2026: valid until 10 February 2027.

It has had one MOT, on 11 February 2026, and passed.

There were no advisories at the latest test.

Mileage at that test: 20,511 miles, which matches the advertised 25,413 miles.

Advertised mileage is about 6,600 miles higher than the median mileage of a 2023 BMW M4 on AskCar.

Similar cars

28 other 2023 BMW M4 Competition 3.0 petrol automatic convertibles are for sale at UK dealers, from £47,898 to £59,994, as of 2 November 2026.

The 3 closest to this car in mileage:

• 2023 BMW M4 Competition, 3.0 petrol convertible, blue. Mileage: 24,974 miles. Price: £49,599, £6,400 less than this car. Dealer: cinch in Hook. AskCar page: https://askcar.co.uk/car/bmw-m4-2023-bf788ac665fb
• 2023 BMW M4 Competition, 3.0 petrol convertible, grey. Mileage: 26,022 miles. Price: £52,995, £3,004 less than this car. Dealer: Berry Thames Ditton BMW in Thames Ditton. AskCar page: https://askcar.co.uk/car/bmw-m4-2023-c5ed27a0c585
• 2023 BMW M4 Competition, 3.0 petrol convertible, grey. Mileage: 23,500 miles. Price: £54,989, £1,010 less than this car. Dealer: A6 Motors in Luton. AskCar page: https://askcar.co.uk/car/bmw-m4-2023-d04eb8e48107

• The nearest: 2023 BMW M4 Competition, 3.0 petrol convertible, blue, 35 miles from this car. Mileage: 9,136 miles. Price: £55,985, the same price as this car. Dealer: Stratstone BMW Bury St Edmunds in Bury St Edmunds. AskCar page: https://askcar.co.uk/car/bmw-m4-2023-05f3186f909f