2021 BMW M3 3.0 BiTurbo Competition

Overview

• Make: BMW
• Model: M3
• Trim: Competition
• Version: 3.0 BiTurbo Competition Steptronic Euro 6 (s/s) 4dr (503 bhp)
• Year: 2021
• Mileage: 21,469 miles
• Fuel: Petrol
• Body: Saloon, 4 doors, 5 seats
• Engine: 3.0 litres, 503 bhp
• Gearbox: Automatic (Steptronic)
• Colour: Blue
• CO2: 224 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

At 21,469 miles, this 2021 BMW M3 Competition has covered about 5,500 fewer miles than other 2021 BMW M3 cars. Priced at £52,000, it is advertised £3,883 below the AskCar estimate of £55,883. The AskCar estimate uses UK dealer asking prices, including 756 BMW M3 adverts, and accounts for the car’s age, mileage and specification. We first saw this car advertised 80 days ago. Its asking price has since fallen by £495. The government's MOT record matches its advertised mileage. It is advertised by White Rose Automotive in Barnsley. 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: £3,883 (6%) under the AskCar estimate of £55,883.

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 756 priced BMW M3 adverts across different ages and specifications, as of 2 November 2026.

A 2021 BMW M3 with the 3.0 petrol engine is typically advertised at £53,500: the median of the 42 for sale on AskCar, as of 2 November 2026.

Time on sale

This 2021 BMW M3 has been on sale for at least 80 days.

Price history

AskCar first saw this advert on 14 August 2026 at £52,495. Its asking price is now £52,000, £495 less. The latest price cut was seen on 26 August 2026.

Price changes recorded:

• 14 August 2026: £52,495
• 26 August 2026: £52,000

Mileage and MOT

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

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

There were no advisories at the latest test.

Mileage at that test: 21,668 miles, which matches the advertised 21,469 miles.

Advertised mileage is about 5,500 miles lower than the median mileage of a 2021 BMW M3 on AskCar.

Similar cars

37 other 2021 BMW M3 Competition 3.0 petrol automatic saloons are for sale at UK dealers, from £42,989 to £78,999, as of 2 November 2026.

The 3 closest to this car in mileage:

• 2021 BMW M3 Competition, 3.0 petrol saloon, blue. Mileage: 21,784 miles. Price: £49,995, £2,005 less than this car. Dealer: Prestige and Performance Cars Wakefield in Wakefield. AskCar page: https://askcar.co.uk/car/bmw-m3-2021-63075a385b76
• 2021 BMW M3 Competition, 3.0 petrol saloon, grey. Mileage: 22,000 miles. Price: £44,995, £7,005 less than this car. Dealer: Hiline Motors in Birmingham. AskCar page: https://askcar.co.uk/car/bmw-m3-2021-f55b34d3700e
• 2021 BMW M3 Competition, 3.0 petrol saloon, grey. Mileage: 20,000 miles. Price: £49,995, £2,005 less than this car. Dealer: S & S Car Sales in Glenrothes. AskCar page: https://askcar.co.uk/car/bmw-m3-2021-296925a4e0d9

• The nearest: 2021 BMW M3 Competition, 3.0 petrol saloon, green, 10 miles from this car. Mileage: 31,243 miles. Price: £59,990, £7,990 more than this car. Dealer: SS Automotive Cars Sheffield in Sheffield. AskCar page: https://askcar.co.uk/car/bmw-m3-2021-c1e053d9425b