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: 35,466 miles
• Fuel: Petrol
• Body: Saloon, 4 doors, 5 seats
• Engine: 3.0 litres, 503 bhp
• Gearbox: Automatic (Steptronic)
• Colour: Grey
• CO2: 232 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

At 35,466 miles, this 2021 BMW M3 Competition has covered about 9,500 more miles than other 2021 BMW M3 cars. Its asking price of £52,750 is £1,000 above the AskCar estimate of £51,750. The AskCar estimate draws on 752 BMW M3 adverts across the UK, adjusting for age, mileage, trim, engine and other specifications. We first saw this car advertised 55 days ago. Its asking price has since fallen by £220. We checked its advertised mileage against the government's MOT record, and they match. It is advertised by Priddy's Motor Company in Minehead. 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: £1,000 (1%) over the AskCar estimate of £51,750.

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 55 days.

Price history

AskCar first saw this advert on 10 September 2026 at £52,970. Its asking price is now £52,750, £220 less. The latest price cut was seen on 14 October 2026.

Price changes recorded:

• 10 September 2026: £52,970
• 14 October 2026: £52,750

Mileage and MOT

MOT, from the government's MOT records (DVSA, the Driver and Vehicle Standards Agency), as of 4 November 2026: valid until 10 September 2027.

It has had 3 MOTs. The latest, on 9 September 2026, passed.

There were no advisories at the latest test.

Mileage at that test: 35,472 miles, which matches the advertised 35,466 miles.

Advertised mileage is about 9,500 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, green. Mileage: 34,456 miles. Price: £51,995, £755 less than this car. Dealer: Brook Cars Company in Telford. AskCar page: https://askcar.co.uk/car/bmw-m3-2021-f3854ae9d46e
• 2021 BMW M3 Competition, 3.0 petrol saloon, black. Mileage: 36,920 miles. Price: £49,990, £2,760 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, white. Mileage: 34,000 miles. Price: £64,995, £12,245 more than this car. Dealer: V G Performance Cars in Andover. AskCar page: https://askcar.co.uk/car/bmw-m3-2021-a7a4294ef552