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: 40,000 miles
• Fuel: Petrol
• Body: Convertible, 2 doors, 4 seats
• Engine: 3.0 litres, 503 bhp
• Gearbox: Automatic (Steptronic)
• Drive: Four-wheel drive
• Colour: Black
• CO2: 233 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

With 40,000 miles on the clock, this 2023 BMW M4 Competition has done roughly 21,200 more miles than a typical 2023 BMW M4. The dealer is asking £47,990, which is £2,155 below the AskCar estimate of £50,145. 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 71 days ago. Its asking price has since fallen by £2,000. We checked its advertised mileage against the government's MOT record, and they match. The seller is Gravelwood Car Sales Gravelwood, based in Sevenoaks. 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: £2,155 (4%) under the AskCar estimate of £50,145.

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 71 days.

Price history

AskCar first saw this advert on 23 August 2026 at £49,990. Its asking price is now £47,990, £2,000 less. The latest price cut was seen on 28 October 2026.

Price changes recorded:

• 23 August 2026: £49,990
• 16 September 2026: £48,990
• 28 October 2026: £47,990

Mileage and MOT

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

It has had one MOT, on 3 February 2026, and passed.

Advisories at the latest test: offside front tyre slightly damaged/cracking or perishing; nearside front tyre slightly damaged/cracking or perishing worn inner edge; offside rear tyre has a cut but not deep enough to reach the ply or cords; and 2 more.

Mileage at that test: 35,175 miles, which matches the advertised 40,000 miles.

Advertised mileage is about 21,200 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, grey. Mileage: 39,674 miles. Price: £47,898, £92 less than this car. Dealer: Arnold Clark Glasgow BMW in Glasgow. AskCar page: https://askcar.co.uk/car/bmw-m4-2023-fc7e99868201
• 2023 BMW M4 Competition, 3.0 petrol convertible, grey. Mileage: 34,334 miles. Price: £52,999, £5,009 more than this car. Dealer: Stratstone Bmw Leeds in Leeds. AskCar page: https://askcar.co.uk/car/bmw-m4-2023-fbd8062d0c37
• 2023 BMW M4 Competition, 3.0 petrol convertible, grey. Mileage: 34,030 miles. Price: £48,970, £980 more than this car. Dealer: Vertu BMW Durham in Durham. AskCar page: https://askcar.co.uk/car/bmw-m4-2023-a13f687b1bf0

• The nearest: 2023 BMW M4 Competition, 3.0 petrol convertible, black, 11 miles from this car. Mileage: 9,445 miles. Price: £53,485, £5,495 more than this car. Dealer: Hedin Automotive Bromley BMW in Bromley. AskCar page: https://askcar.co.uk/car/bmw-m4-2023-a36541ea0b92