2021 BMW M3 3.0 BiTurbo Competition

Overview

• Make: BMW
• Model: M3
• Trim: Competition
• Version: 3.0 BiTurbo Competition Steptronic RWD Euro 6 (s/s) 4dr (503 bhp)
• Year: 2021
• Mileage: 36,920 miles
• Fuel: Petrol
• Body: Saloon, 4 doors, 5 seats
• Engine: 3.0 litres, 503 bhp
• Gearbox: Automatic (Steptronic)
• Drive: Rear-wheel drive
• Colour: Black
• CO2: 232 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

At 36,920 miles, this 2021 BMW M3 Competition has covered about 11,000 more miles than other 2021 BMW M3 cars. Priced at £49,990, it is advertised £1,375 below the AskCar estimate of £51,365. 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 6 days ago. Its advertised mileage matches the government's MOT record. It is for sale at Performance 28 Cars in Chester LE Street. 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: £1,375 (2%) under the AskCar estimate of £51,365.

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 6 days ago.

Price history

AskCar first saw this advert on 29 October 2026 at £49,990. 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 4 November 2026: valid until 8 April 2027.

It has had 4 MOTs. The latest, on 9 April 2026, passed.

There were no advisories at the latest test.

Mileage at that test: 31,355 miles, which matches the advertised 36,920 miles.

Advertised mileage is about 11,000 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, grey. Mileage: 35,466 miles. Price: £52,750, £2,760 more 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, blue. Mileage: 39,000 miles. Price: £55,990, £6,000 more than this car. Dealer: Auto Prestige in Bradford. AskCar page: https://askcar.co.uk/car/bmw-m3-2021-bd91d47e40bd
• 2021 BMW M3 Competition, 3.0 petrol saloon, green. Mileage: 34,456 miles. Price: £51,995, £2,005 more 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, red, 62 miles from this car. Mileage: 52,400 miles. Price: £48,995, £995 less than this car. Dealer: Yorkshire Vehicle Solutions in York. AskCar page: https://askcar.co.uk/car/bmw-m3-2021-43542f865fdd