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: 44,226 miles
• Fuel: Petrol
• Body: Saloon, 4 doors, 5 seats
• Engine: 3.0 litres, 503 bhp
• Gearbox: Automatic (Steptronic)
• Colour: Green
• CO2: 231 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

This 2021 BMW M3 Competition is advertised with 44,226 miles, approximately 17,300 above the typical mileage for its age. The dealer is asking £50,990, which is £1,731 above the AskCar estimate of £49,259. To work out the AskCar estimate, we analyse UK dealer adverts for 744 BMW M3 cars across different ages and specifications. This car was first seen in our listings data 1 day ago. We checked its advertised mileage against the government's MOT record, and they match. The seller is Group 1 Norwich BMW, based in Norwich. How to contact the dealer and its opening hours are on this AskCar page.

Stock data as of 7 November 2026.

How we estimate prices and check cars

Price

Fair price: £1,731 (3%) over the AskCar estimate of £49,259.

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 744 priced BMW M3 adverts across different ages and specifications, as of 7 November 2026.

A 2021 BMW M3 with the 3.0 petrol engine is typically advertised at £53,500: the median of the 44 for sale on AskCar, as of 7 November 2026.

Time on sale

AskCar first saw this 2021 BMW M3 advertised 1 day ago.

Price history

AskCar first saw this advert on 6 November 2026 at £50,990. 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 7 November 2026: valid until 10 April 2027.

It has had 3 MOTs. The latest, on 4 April 2026, passed.

There were no advisories at the latest test.

Mileage at that test: 40,037 miles, which matches the advertised 44,226 miles.

Advertised mileage is about 17,300 miles higher than the median mileage of a 2021 BMW M3 on AskCar.

Similar cars

39 other 2021 BMW M3 Competition 3.0 petrol automatic saloons are for sale at UK dealers, from £42,989 to £78,999, as of 7 November 2026.

The 3 closest to this car in mileage:

• 2021 BMW M3 Competition, 3.0 petrol saloon, yellow. Mileage: 45,511 miles. Price: £49,800, £1,190 less than this car. Dealer: Brook Cars Company in Telford. AskCar page: https://askcar.co.uk/car/bmw-m3-2021-48eadefc5496
• 2021 BMW M3 Competition, 3.0 petrol saloon, grey. Mileage: 47,000 miles. Price: £47,990, £3,000 less than this car. Dealer: Vogue Motor Company in Bolton. AskCar page: https://askcar.co.uk/car/bmw-m3-2021-4b2b85614bc6
• 2021 BMW M3 Competition, 3.0 petrol saloon, green. Mileage: 47,786 miles. Price: £47,899, £3,091 less than this car. Dealer: Halliwell Jones Wilmslow BMW in Wilmslow. AskCar page: https://askcar.co.uk/car/bmw-m3-2021-8c70031d7930

• The nearest: 2021 BMW M3 Competition, 3.0 petrol saloon, grey, 29 miles from this car. Mileage: 26,926 miles. Price: £54,999, £4,009 more than this car. Dealer: Sandles Cars in King's Lynn. AskCar page: https://askcar.co.uk/car/bmw-m3-2021-1cf1688899dc