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: 5,400 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

At 5,400 miles, this 2023 BMW M4 Competition has covered about 13,400 fewer miles than other 2023 BMW M4 cars. Priced at £59,650, it is advertised £122 below the AskCar estimate of £59,772. The AskCar estimate draws on 738 BMW M4 adverts across the UK, adjusting for age, mileage, trim, engine and other specifications. Since we first spotted the advert 114 days ago, the asking price has dropped by £3,300. You can find this car at Boss Motor Company in Chesham. 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: £122 (under 1%) under the AskCar estimate of £59,772.

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 114 days.

Price history

AskCar first saw this advert on 11 July 2026 at £62,950. Its asking price is now £59,650, £3,300 less. The latest price cut was seen on 27 October 2026.

Price changes recorded:

• 11 July 2026: £62,950
• 6 August 2026: £61,950
• 29 August 2026: £61,250
• 29 September 2026: £60,450
• 14 October 2026: £59,950
• 27 October 2026: £59,650

Mileage and MOT

Advertised mileage is about 13,400 miles lower 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, grey. Mileage: 5,203 miles. Price: £57,450, £2,200 less than this car. Dealer: North Oxford Bmw in Oxford. AskCar page: https://askcar.co.uk/car/bmw-m4-2023-bc723bf83b42
• 2023 BMW M4 Competition, 3.0 petrol convertible, grey. Mileage: 6,000 miles. Price: £57,980, £1,670 less than this car. Dealer: Auto100.Co.Uk in Sutton in Ashfield. AskCar page: https://askcar.co.uk/car/bmw-m4-2023-30438c8d9265
• 2023 BMW M4 Competition, 3.0 petrol convertible, grey. Mileage: 7,532 miles. Price: £56,690, £2,960 less than this car. Dealer: Stratstone BMW Milton Keynes in Milton Keynes. AskCar page: https://askcar.co.uk/car/bmw-m4-2023-9238c327a572

• The nearest: 2023 BMW M4 Competition, 3.0 petrol convertible, blue, 15 miles from this car. Mileage: 11,000 miles. Price: £56,950, £2,700 less than this car. Dealer: HCS Trading in Luton. AskCar page: https://askcar.co.uk/car/bmw-m4-2023-e21952c2bc89