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: 45,511 miles
• Fuel: Petrol
• Body: Saloon, 4 doors, 5 seats
• Engine: 3.0 litres, 503 bhp
• Gearbox: Automatic (Steptronic)
• Drive: Rear-wheel drive
• Colour: Yellow
• CO2: 232 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

This 2021 BMW M3 Competition is advertised with 45,511 miles, approximately 18,600 above the typical mileage for its age. The dealer is asking £49,800, which is £1,077 above the AskCar estimate of £48,723. To work out the AskCar estimate, we analyse UK dealer adverts for 756 BMW M3 cars across different ages and specifications. We first saw this car advertised 24 days ago. Its asking price has since fallen by £100. We checked its advertised mileage against the government's MOT record, and they match. It is for sale at Brook Cars Company in Telford. 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: £1,077 (2%) over the AskCar estimate of £48,723.

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 24 days.

Price history

AskCar first saw this advert on 9 October 2026 at £49,900. Its asking price is now £49,800, £100 less. The latest price cut was seen on 10 October 2026.

Price changes recorded:

• 9 October 2026: £49,900
• 10 October 2026: £49,800

Mileage and MOT

MOT, from the government's MOT records (DVSA, the Driver and Vehicle Standards Agency), as of 2 November 2026: valid until 3 April 2027.

It failed its MOT on 4 March 2026 (offside rear coil spring fractured or broken; nearside rear coil spring fractured or broken) and passed 1 day later, on 5 March 2026.

There were no advisories at the latest test.

Mileage at that test: 41,358 miles, which matches the advertised 45,511 miles.

Advertised mileage is about 18,600 miles higher 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, grey. Mileage: 47,000 miles. Price: £47,990, £1,810 less than this car. Dealer: Vogue Motor Company in Bolton. AskCar page: https://askcar.co.uk/car/bmw-m3-2021-4b2b85614bc6
• 2021 BMW M3 Competition, 3.0 petrol saloon, green. Mileage: 47,786 miles. Price: £47,999, £1,801 less than this car. Dealer: Halliwell Jones Wilmslow BMW in Wilmslow. AskCar page: https://askcar.co.uk/car/bmw-m3-2021-8c70031d7930
• 2021 BMW M3 Competition, 3.0 petrol saloon, grey. Mileage: 48,000 miles. Price: £49,985, £185 more than this car. Dealer: Brooklands Motor Centre in Leeds. AskCar page: https://askcar.co.uk/car/bmw-m3-2021-98e65ff29301

• The nearest: 2021 BMW M3 Competition, 3.0 petrol saloon, green, under a mile from this car. Mileage: 34,456 miles. Price: £51,995, £2,195 more than this car. Dealer: Brook Cars Company in Telford. AskCar page: https://askcar.co.uk/car/bmw-m3-2021-f3854ae9d46e