2021 BMW M3 3.0 BiTurbo Competition

Overview

• Make: BMW
• Model: M3
• Trim: Competition
• Version: 3.0 BiTurbo Competition Steptronic 4WD Euro 6 (s/s) 4dr M (503 bhp)
• Year: 2021
• Mileage: 39,000 miles
• Fuel: Petrol
• Body: Saloon, 4 doors, 5 seats
• Engine: 3.0 litres, 503 bhp
• Gearbox: Automatic (Steptronic)
• Drive: Four-wheel drive
• Colour: Blue
• CO2: 229 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

With 39,000 miles on the clock, this 2021 BMW M3 Competition has done roughly 13,000 more miles than a typical 2021 BMW M3. Its asking price of £55,990 is £374 above the AskCar estimate of £55,616. To work out the AskCar estimate, we analyse UK dealer adverts for 752 BMW M3 cars across different ages and specifications. Since we first spotted the advert 29 days ago, the asking price has dropped by £2,000. We checked its advertised mileage against the government's MOT record, and they match. You can find this car at Auto Prestige in Bradford. 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: £374 (under 1%) over the AskCar estimate of £55,616.

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 752 priced BMW M3 adverts across different ages and specifications, as of 4 November 2026.

A 2021 BMW M3 with the 3.0 petrol engine is typically advertised at £54,000: the median of the 43 for sale on AskCar, as of 4 November 2026.

Time on sale

This 2021 BMW M3 has been on sale for at least 29 days.

Price history

AskCar first saw this advert on 6 October 2026 at £57,990. Its asking price is now £55,990, £2,000 less. The latest price cut was seen on 30 October 2026.

Price changes recorded:

• 6 October 2026: £57,990
• 13 October 2026: £56,990
• 30 October 2026: £55,990

Mileage and MOT

MOT, from the government's MOT records (DVSA, the Driver and Vehicle Standards Agency), as of 4 November 2026: valid until 2 June 2027.

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

There were no advisories at the latest test.

Mileage at that test: 38,159 miles, which matches the advertised 39,000 miles.

Advertised mileage is about 13,000 miles higher than the median mileage of a 2021 BMW M3 on AskCar.

Similar cars

38 other 2021 BMW M3 Competition 3.0 petrol automatic saloons are for sale at UK dealers, from £42,989 to £78,999, as of 4 November 2026.

The 3 closest to this car in mileage:

• 2021 BMW M3 Competition, 3.0 petrol saloon, black. Mileage: 36,920 miles. Price: £49,990, £6,000 less than this car. Dealer: Performance 28 Cars in Chester-le-Street. AskCar page: https://askcar.co.uk/car/bmw-m3-2021-5d3ba0c54228
• 2021 BMW M3 Competition, 3.0 petrol saloon, grey. Mileage: 35,466 miles. Price: £52,750, £3,240 less than this car. Dealer: Priddy's Motor Company in Minehead. AskCar page: https://askcar.co.uk/car/bmw-m3-2021-990ad2add846
• 2021 BMW M3 Competition, 3.0 petrol saloon, green. Mileage: 34,456 miles. Price: £51,995, £3,995 less than this car. Dealer: Brook Cars Company in Telford. AskCar page: https://askcar.co.uk/car/bmw-m3-2021-f3854ae9d46e

• The nearest: 2021 BMW M3 Competition, 3.0 petrol saloon, grey, 8 miles from this car. Mileage: 48,000 miles. Price: £49,985, £6,005 less than this car. Dealer: Brooklands Motor Centre in Leeds. AskCar page: https://askcar.co.uk/car/bmw-m3-2021-98e65ff29301