2021 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: 2021
• Mileage: 53,000 miles
• Fuel: Petrol
• Body: Coupe, 2 doors, 4 seats
• Engine: 3.0 litres, 503 bhp
• Gearbox: Automatic (Steptronic)
• Drive: Four-wheel drive
• Colour: Blue
• CO2: 229 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

This 2021 BMW M4 Competition is advertised with 53,000 miles, approximately 20,300 above the typical mileage for its age. The dealer is asking £45,750, which is £1,325 above the AskCar estimate of £44,425. To work out the AskCar estimate, we analyse UK dealer adverts for 738 BMW M4 cars across different ages and specifications. This car was first seen in our listings data 21 days ago. The government's MOT record matches its advertised mileage. It is for sale 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: £1,325 (2%) over the AskCar estimate of £44,425.

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 2021 BMW M4 with the 3.0 petrol engine is typically advertised at £46,500: the median of the 64 for sale on AskCar, as of 2 November 2026.

Time on sale

This 2021 BMW M4 has been on sale for at least 21 days.

Price history

AskCar first saw this advert on 12 October 2026 at £45,750. 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 2 November 2026: valid until 10 April 2027.

It has had 3 MOTs. The latest, on 23 March 2026, passed.

There were no advisories at the latest test.

Mileage at that test: 50,258 miles, which matches the advertised 53,000 miles.

Advertised mileage is about 20,300 miles higher than the median mileage of a 2021 BMW M4 on AskCar.

Similar cars

51 other 2021 BMW M4 Competition 3.0 petrol automatic coupes are for sale at UK dealers, from £30,000 to £58,995, as of 2 November 2026.

The 3 closest to this car in mileage:

• 2021 BMW M4 Competition, 3.0 petrol coupe, white. Mileage: 55,483 miles. Price: £45,490, £260 less than this car. Dealer: Stratstone Select Bracknell in Bracknell. AskCar page: https://askcar.co.uk/car/bmw-m4-2021-eceba603f6bb
• 2021 BMW M4 Competition, 3.0 petrol coupe, grey. Mileage: 49,500 miles. Price: £46,950, £1,200 more than this car. Dealer: Lodge Motor Co in Yateley. AskCar page: https://askcar.co.uk/car/bmw-m4-2021-9446cd5c9977
• 2021 BMW M4 Competition, 3.0 petrol coupe, grey. Mileage: 48,821 miles. Price: £45,340, £410 less than this car. Dealer: Prestige Cars Kent in Bromley. AskCar page: https://askcar.co.uk/car/bmw-m4-2021-91477b591e5b

• The nearest: 2021 BMW M4 Competition, 3.0 petrol coupe, grey, 9 miles from this car. Mileage: 35,000 miles. Price: £44,995, £755 less than this car. Dealer: AH Specialist Cars in Watford. AskCar page: https://askcar.co.uk/car/bmw-m4-2021-545f2a297c0c