2021 BMW 3 Series 2.0 M Sport

Overview

• Make: BMW
• Model: 3 Series
• Trim: M Sport
• Version: 2.0 MHT M Sport Auto Euro 6 4dr
• Year: 2021
• Mileage: 49,000 miles
• Fuel: Diesel, mild hybrid
• Body: Saloon, 4 doors, 5 seats
• Engine: 2.0 litres
• Gearbox: Automatic
• Colour: Grey
• CO2: 124 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

This 2021 BMW 3 Series M Sport is advertised with 49,000 miles, approximately 6,100 below the typical mileage for its age. The dealer is asking £20,950, which is £544 below the AskCar estimate of £21,494. To work out the AskCar estimate, we analyse UK dealer adverts for 6,886 BMW 3 Series cars across different ages and specifications. We first saw this car advertised 11 days ago. Its asking price has since fallen by £49. We checked its advertised mileage against the government's MOT record, and they match. You can find this car at Lookers Charles Hurst Usedirect Portadown in Armagh City, Banbridge and Craigavon. How to contact the dealer and its opening hours are on this AskCar page.

Stock data as of 7 November 2026.

How we estimate prices and check cars

Price

Fair price: £544 (2%) under the AskCar estimate of £21,494.

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 6,886 priced BMW 3 Series adverts across different ages and specifications, as of 7 November 2026.

Time on sale

This 2021 BMW 3 Series has been on sale for at least 11 days.

Price history

AskCar first saw this advert on 27 October 2026 at £20,999. Its asking price is now £20,950, £49 less. The latest price cut was seen on 6 November 2026.

Price changes recorded:

• 27 October 2026: £20,999
• 6 November 2026: £20,950

Mileage and MOT

MOT, from the government's MOT records (DVSA, the Driver and Vehicle Standards Agency), as of 7 November 2026: valid until 20 May 2027.

It has had 3 MOTs. The latest, on 21 May 2026, passed.

Advisories at the latest test: offside rear outer brake pad(s) wearing thin.

Mileage at that test: 46,339 miles, which matches the advertised 49,000 miles.

Advertised mileage is about 6,100 miles lower than the median mileage of a 2021 BMW 3 Series on AskCar.

Similar cars

59 other 2021 BMW 3 Series M Sport 2.0 diesel automatic saloons are for sale at UK dealers, from £12,700 to £25,495, as of 7 November 2026.

The 3 closest to this car in mileage:

• 2021 BMW 3 Series M Sport, 2.0 diesel saloon, grey. Mileage: 48,500 miles. Price: £21,790, £840 more than this car. Dealer: S James Prestige in Essendine. AskCar page: https://askcar.co.uk/car/bmw-3-series-2021-02552e2d4180
• 2021 BMW 3 Series M Sport, 2.0 diesel saloon, black. Mileage: 48,000 miles. Price: £20,995, the same price as this car. Dealer: Top Tier Autos in Cheadle. AskCar page: https://askcar.co.uk/car/bmw-3-series-2021-67de26e40fa9
• 2021 BMW 3 Series M Sport, 2.0 diesel saloon, black. Mileage: 47,896 miles. Price: £21,990, £1,040 more than this car. Dealer: Haywards Automotive in Canvey Island. AskCar page: https://askcar.co.uk/car/bmw-3-series-2021-131e162c038b

• The nearest: 2021 BMW 3 Series M Sport, 2.0 diesel saloon, white, 10 miles from this car. Mileage: 87,009 miles. Price: £18,950, £2,000 less than this car. Dealer: Ballinderry Car Sales in Lisburn. AskCar page: https://askcar.co.uk/car/bmw-3-series-2021-1324a3aefdc2