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: 79,812 miles
• Fuel: Petrol
• Body: Coupe, 2 doors, 4 seats
• Engine: 3.0 litres, 503 bhp
• Gearbox: Automatic (Steptronic)
• Colour: Grey
• CO2: 231 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

With 79,812 miles on the clock, this 2021 BMW M4 Competition has done roughly 47,100 more miles than a typical 2021 BMW M4. The dealer is asking £38,495, which is £1,914 above the AskCar estimate of £36,581. To work out the AskCar estimate, we analyse UK dealer adverts for 738 BMW M4 cars across different ages and specifications. The asking price is now £500 lower than when we first recorded the advert 25 days ago. According to the government's MOT record, its advertised mileage is consistent with the latest test. The seller is Gibbons Automotive, based in Westbury. 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: £1,914 (5%) over the AskCar estimate of £36,581.

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 25 days.

Price history

AskCar first saw this advert on 8 October 2026 at £38,995. Its asking price is now £38,495, £500 less. The latest price cut was seen on 31 October 2026.

Price changes recorded:

• 8 October 2026: £38,995
• 13 October 2026: £39,995
• 16 October 2026: £39,745
• 17 October 2026: £39,495
• 24 October 2026: £38,995
• 31 October 2026: £38,495

Mileage and MOT

MOT, from the government's MOT records (DVSA, the Driver and Vehicle Standards Agency), as of 2 November 2026: valid until 30 April 2027.

It failed its MOT on 30 April 2026 (offside rear tyre tread depth below requirements of 1.6mm; nearside rear tyre tread depth below requirements of 1.6mm; nearside rear tyre has ply or cords exposed) and passed 1 day later, on 1 May 2026.

Advisories at the latest test: nearside front tyre has a cut but not deep enough to reach the ply or cords 2753519.

Mileage at that test: 77,598 miles, which matches the advertised 79,812 miles.

Advertised mileage is about 47,100 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, grey. Mileage: 80,000 miles. Price: £37,950, £545 less than this car. Dealer: Car City (Luton) in Luton. AskCar page: https://askcar.co.uk/car/bmw-m4-2021-7c7aa23616b7
• 2021 BMW M4 Competition, 3.0 petrol coupe, blue. Mileage: 70,400 miles. Price: £37,495, £1,000 less than this car. Dealer: Evolve Motor Company in Newport. AskCar page: https://askcar.co.uk/car/bmw-m4-2021-a1b943e5cbf6
• 2021 BMW M4 Competition, 3.0 petrol coupe, grey. Mileage: 68,000 miles. Price: £38,450, the same price as this car. Dealer: Farlan Automotive in Wembley. AskCar page: https://askcar.co.uk/car/bmw-m4-2021-c1d0396b0b6c

• The nearest: 2021 BMW M4 Competition, 3.0 petrol coupe, grey, 25 miles from this car. Mileage: 26,509 miles. Price: £44,999, £6,504 more than this car. Dealer: Dick Lovett Porsche Centre Swindon in Swindon. AskCar page: https://askcar.co.uk/car/bmw-m4-2021-4580c4697598