2021 BMW M4 3.0 BiTurbo Competition

Overview

• Make: BMW
• Model: M4
• Trim: Competition
• Version: 3.0 BiTurbo Competition Steptronic Euro 6 (s/s) 2dr (503 bhp)
• Year: 2021
• Mileage: 40,128 miles
• Fuel: Petrol
• Body: Coupe, 2 doors, 4 seats
• Engine: 3.0 litres, 503 bhp
• Gearbox: Automatic (Steptronic)
• Colour: Black
• CO2: 229 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

This 2021 BMW M4 Competition is advertised with 40,128 miles, approximately 8,200 above the typical mileage for its age. Its asking price of £49,499 is £2,869 above the AskCar estimate of £46,630. The AskCar estimate uses UK dealer asking prices, including 738 BMW M4 adverts, and accounts for the car’s age, mileage and specification. Since we first spotted the advert 78 days ago, the asking price has dropped by £500. We checked its advertised mileage against the government's MOT record, and they match. It is for sale at BC Performance Cars in Gloucester. How to contact the dealer and its opening hours are on this AskCar page.

Stock data as of 4 November 2026.

How we estimate prices and check cars

Price

Fair price: £2,869 (6%) over the AskCar estimate of £46,630.

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 4 November 2026.

A 2021 BMW M4 with the 3.0 petrol engine is typically advertised at £46,500: the median of the 62 for sale on AskCar, as of 4 November 2026.

Time on sale

This 2021 BMW M4 has been on sale for at least 78 days.

Price history

AskCar first saw this advert on 18 August 2026 at £49,999. Its asking price is now £49,499, £500 less. The latest price cut was seen on 29 October 2026.

Price changes recorded:

• 18 August 2026: £49,999
• 16 October 2026: £49,949
• 29 October 2026: £49,499

Mileage and MOT

MOT, from the government's MOT records (DVSA, the Driver and Vehicle Standards Agency), as of 4 November 2026: valid until 23 August 2027.

It has had 3 MOTs. The latest, on 24 August 2026, passed.

Advisories at the latest test: nearside rear outer tyre worn close to legal limit/worn on edge; offside rear outer tyre worn close to legal limit/worn on edge.

Mileage at that test: 40,134 miles, which matches the advertised 40,128 miles.

Advertised mileage is about 8,200 miles higher than the median mileage of a 2021 BMW M4 on AskCar.

Similar cars

49 other 2021 BMW M4 Competition 3.0 petrol automatic coupes are for sale at UK dealers, from £30,000 to £58,995, as of 4 November 2026.

The 3 closest to this car in mileage:

• 2021 BMW M4 Competition, 3.0 petrol coupe, orange. Mileage: 40,000 miles. Price: £47,989, £1,510 less than this car. Dealer: Bluehawk Automotive in Hounslow. AskCar page: https://askcar.co.uk/car/bmw-m4-2021-3904071b0583
• 2021 BMW M4 Competition, 3.0 petrol coupe, black. Mileage: 39,685 miles. Price: £47,750, £1,749 less than this car. Dealer: Sycamore BMW in Peterborough. AskCar page: https://askcar.co.uk/car/bmw-m4-2021-313d99a16818
• 2021 BMW M4 Competition, 3.0 petrol coupe, black. Mileage: 40,646 miles. Price: £46,995, £2,504 less than this car. Dealer: NSA Motor Vehicles in Milton Keynes. AskCar page: https://askcar.co.uk/car/bmw-m4-2021-a827d7d4f2fb

• The nearest: 2021 BMW M4 Competition, 3.0 petrol coupe, grey, 26 miles from this car. Mileage: 26,509 miles. Price: £44,999, £4,500 less than this car. Dealer: Dick Lovett Porsche Centre Swindon in Swindon. AskCar page: https://askcar.co.uk/car/bmw-m4-2021-4580c4697598