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: 19,095 miles
• Fuel: Petrol
• Body: Saloon, 4 doors, 5 seats
• Engine: 3.0 litres, 503 bhp
• Gearbox: Automatic (Steptronic)
• Colour: Black
• CO2: 232 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

With 19,095 miles on the clock, this 2021 BMW M3 Competition has done roughly 6,900 fewer miles than a typical 2021 BMW M3. The AskCar estimate for this car is £56,383. It is priced at £54,995, which is £1,388 below that estimate. The AskCar estimate uses 752 UK dealer adverts for the BMW M3, with adjustments for age, mileage, trim, engine and other specifications. We first recorded this car for sale today. According to the government's MOT record, its advertised mileage is consistent with the latest test. The seller is Group 1 Farnborough BMW, based in Farnborough. 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: £1,388 (2%) under the AskCar estimate of £56,383.

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

AskCar first saw this 2021 BMW M3 advertised today.

Price history

AskCar first saw this advert on 4 November 2026 at £54,995. 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 4 November 2026: valid until 27 May 2027.

It has had 3 MOTs. The latest, on 6 May 2026, passed.

There were no advisories at the latest test.

Mileage at that test: 17,202 miles, which matches the advertised 19,095 miles.

Advertised mileage is about 6,900 miles lower 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, white. Mileage: 18,500 miles. Price: £48,950, £6,045 less than this car. Dealer: Westside Cars in Wednesbury. AskCar page: https://askcar.co.uk/car/bmw-m3-2021-6127bf3650b7
• 2021 BMW M3 Competition, 3.0 petrol saloon, grey. Mileage: 20,000 miles. Price: £49,995, £5,000 less than this car. Dealer: S & S Car Sales in Glenrothes. AskCar page: https://askcar.co.uk/car/bmw-m3-2021-296925a4e0d9
• 2021 BMW M3 Competition, 3.0 petrol saloon, grey. Mileage: 17,981 miles. Price: £58,300, £3,305 more than this car. Dealer: John Clark BMW Aberdeen in Aberdeen. AskCar page: https://askcar.co.uk/car/bmw-m3-2021-b96af864bcef

• The nearest: 2021 BMW M3 Competition, 3.0 petrol saloon, white, 31 miles from this car. Mileage: 34,000 miles. Price: £64,995, £10,000 more than this car. Dealer: V G Performance Cars in Andover. AskCar page: https://askcar.co.uk/car/bmw-m3-2021-a7a4294ef552