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: 28,000 miles
• Fuel: Petrol
• Body: Coupe, 2 doors, 4 seats
• Engine: 3.0 litres, 503 bhp
• Gearbox: Automatic (Steptronic)
• Colour: Grey
• Emissions standard: Euro 6, ULEZ compliant

About this car

This 2021 BMW M4 Competition is advertised with 28,000 miles, approximately 4,700 below the typical mileage for its age. The AskCar estimate for this car is £49,492. It is priced at £46,479, which is £3,013 below that estimate. 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 15 days ago. Its asking price has since fallen by £310. You can find this car at The Car Guys in Dunstable. 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: £3,013 (6%) under the AskCar estimate of £49,492.

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 15 days.

Price history

AskCar first saw this advert on 18 October 2026 at £46,789. Its asking price is now £46,479, £310 less. The latest price cut was seen on 29 October 2026.

Price changes recorded:

• 18 October 2026: £46,789
• 29 October 2026: £46,479

Mileage and MOT

Advertised mileage is about 4,700 miles lower 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, black. Mileage: 28,300 miles. Price: £44,945, £1,534 less than this car. Dealer: TMMC The Manchester Motor Company in Bolton. AskCar page: https://askcar.co.uk/car/bmw-m4-2021-b929de963cb3
• 2021 BMW M4 Competition, 3.0 petrol coupe, grey. Mileage: 26,509 miles. Price: £44,999, £1,480 less than this car. Dealer: Dick Lovett Porsche Centre Swindon in Swindon. AskCar page: https://askcar.co.uk/car/bmw-m4-2021-4580c4697598
• 2021 BMW M4 Competition, 3.0 petrol coupe, grey. Mileage: 30,000 miles. Price: £48,495, £2,016 more than this car. Dealer: Hitchfields in Huddersfield. AskCar page: https://askcar.co.uk/car/bmw-m4-2021-8d35d5ebf955

• The nearest: 2021 BMW M4 Competition, 3.0 petrol coupe, grey, 2 miles from this car. Mileage: 30,000 miles. Price: £50,000, £3,521 more than this car. Dealer: FS Performance in Luton. AskCar page: https://askcar.co.uk/car/bmw-m4-2021-d00a892f5fc9