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: 17,981 miles
• Fuel: Petrol
• Body: Saloon, 4 doors, 5 seats
• Engine: 3.0 litres, 503 bhp
• Gearbox: Automatic (Steptronic)
• Colour: Grey
• CO2: 229 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

With 17,981 miles on the clock, this 2021 BMW M3 Competition has done roughly 8,900 fewer miles than a typical 2021 BMW M3. Priced at £58,300, it is advertised £1,448 above the AskCar estimate of £56,852. The AskCar estimate uses UK dealer asking prices, including 756 BMW M3 adverts, and accounts for the car’s age, mileage and specification. This car was first seen in our listings data 17 days ago. We checked its advertised mileage against the government's MOT record, and they match. The seller is John Clark BMW Aberdeen, based in Aberdeen. 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: £1,448 (2%) over the AskCar estimate of £56,852.

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 17 days.

Price history

AskCar first saw this advert on 16 October 2026 at £58,300. 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 2 November 2026: valid until 29 September 2027.

It has had 3 MOTs. The latest, on 18 September 2026, passed.

Advisories at the latest test: rear tyre worn close to legal limit/worn on edge both; rear tyre slightly damaged/cracking or perishing both; nearside front tyre slightly damaged/cracking or perishing.

Mileage at that test: 17,881 miles, which matches the advertised 17,981 miles.

Advertised mileage is about 8,900 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, white. Mileage: 18,500 miles. Price: £48,950, £9,350 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, black. Mileage: 16,000 miles. Price: £56,995, £1,305 less than this car. Dealer: Waterways Prestige in Leighton Buzzard. AskCar page: https://askcar.co.uk/car/bmw-m3-2021-a730496dd9e8
• 2021 BMW M3 Competition, 3.0 petrol saloon, grey. Mileage: 20,000 miles. Price: £49,995, £8,305 less than this car. Dealer: S & S Car Sales in Glenrothes. AskCar page: https://askcar.co.uk/car/bmw-m3-2021-296925a4e0d9