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: 2 doors, 4 seats
• Engine: 3.0 litres, 503 bhp
• Gearbox: Automatic (Steptronic)
• Drive: Four-wheel drive
• Colour: White
• CO2: 233 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

This 2023 BMW M4 Competition has covered 40,000 miles, around 21,300 more miles than is typical for its age. The dealer is asking £49,299, which is £672 below the AskCar estimate of £49,971. To work out the AskCar estimate, we analyse UK dealer adverts for 733 BMW M4 cars across different ages and specifications. It first appeared in our advert records 21 days ago. Its advertised mileage matches the government's MOT record. It is advertised by Beck Evans in Sidcup. How to contact the dealer and its opening hours are on this AskCar page.

Stock data as of 5 November 2026.

How we estimate prices and check cars

Price

Fair price: £672 (1%) under the AskCar estimate of £49,971.

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 733 priced BMW M4 adverts across different ages and specifications, as of 5 November 2026.

A 2023 BMW M4 with the 3.0 petrol engine is typically advertised at £55,000: the median of the 84 for sale on AskCar, as of 5 November 2026.

Time on sale

This 2023 BMW M4 has been on sale for at least 21 days.

Price history

AskCar first saw this advert on 15 October 2026 at £49,299. 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 5 November 2026: valid until 18 June 2027.

It has had one MOT, on 25 May 2026, and passed.

Advisories at the latest test: front brake discs scored; rear brake discs scored; nearside front nail in tyre; and 3 more.

Mileage at that test: 37,588 miles, which matches the advertised 40,000 miles.

Advertised mileage is about 21,300 miles higher than the median mileage of a 2023 BMW M4 on AskCar.