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: 37,996 miles
• Fuel: Diesel, mild hybrid
• Body: Saloon, 4 doors, 5 seats
• Engine: 2.0 litres
• Gearbox: Automatic
• Colour: Blue
• CO2: 127 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

With 37,996 miles on the clock, this 2021 BMW 3 Series M Sport has done roughly 17,000 fewer miles than a typical 2021 BMW 3 Series. The dealer is asking £22,495, which is £579 below the AskCar estimate of £23,074. To work out the AskCar estimate, we analyse UK dealer adverts for 6,742 BMW 3 Series cars across different ages and specifications. Since we first spotted the advert 39 days ago, the asking price has dropped by £300. According to the government's MOT record, its advertised mileage is consistent with the latest test. The seller is Park's Motor Group Douglas Park BMW Hamilton, based in Hamilton. 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: £579 (2%) under the AskCar estimate of £23,074.

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 6,742 priced BMW 3 Series adverts across different ages and specifications, as of 2 November 2026.

Time on sale

This 2021 BMW 3 Series has been on sale for at least 39 days.

Price history

AskCar first saw this advert on 24 September 2026 at £22,795. Its asking price is now £22,495, £300 less. The latest price cut was seen on 26 October 2026.

Price changes recorded:

• 24 September 2026: £22,795
• 26 October 2026: £22,495

Mileage and MOT

MOT, from the government's MOT records (DVSA, the Driver and Vehicle Standards Agency), as of 2 November 2026: valid until 17 August 2027.

It failed its MOT on 31 July 2026 (nearside front tyre has a cut in excess of the requirements deep enough to reach the ply or cords) and passed 4 days later, on 4 August 2026.

Advisories at the latest test: offside rear tyre worn close to legal limit/worn on edge.

Mileage at that test: 36,657 miles, which matches the advertised 37,996 miles.

Advertised mileage is about 17,000 miles lower than the median mileage of a 2021 BMW 3 Series on AskCar.

Similar cars

60 other 2021 BMW 3 Series M Sport 2.0 diesel automatic saloons are for sale at UK dealers, from £13,500 to £25,995, as of 2 November 2026.

The 3 closest to this car in mileage:

• 2021 BMW 3 Series M Sport, 2.0 diesel saloon, blue. Mileage: 37,757 miles. Price: £20,998, £1,497 less than this car. Dealer: Arnold Clark Glasgow Hamilton Road Peugeot Leapmotor in Glasgow. AskCar page: https://askcar.co.uk/car/bmw-3-series-2021-5b5e12e93fae
• 2021 BMW 3 Series M Sport, 2.0 diesel saloon, white. Mileage: 36,844 miles. Price: £23,590, £1,095 more than this car. Dealer: Marshall BMW Grimsby in Grimsby. AskCar page: https://askcar.co.uk/car/bmw-3-series-2021-bcef8fef470f
• 2021 BMW 3 Series M Sport, 2.0 diesel saloon, grey. Mileage: 36,233 miles. Price: £20,995, £1,500 less than this car. Dealer: TF Car Centre in Euxton. AskCar page: https://askcar.co.uk/car/bmw-3-series-2021-dbfa2cd553ed