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: 21,500 miles
• Fuel: Diesel, mild hybrid
• Body: Saloon, 4 doors, 5 seats
• Engine: 2.0 litres
• Gearbox: Automatic
• Colour: Blue
• CO2: 124 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

This 2021 BMW 3 Series M Sport has covered 21,500 miles, around 33,300 fewer miles than is typical for its age. Its asking price of £23,890 is £1,345 below the AskCar estimate of £25,235. The AskCar estimate draws on 6,897 BMW 3 Series adverts across the UK, adjusting for age, mileage, trim, engine and other specifications. We first saw this car advertised 50 days ago. Its asking price has since fallen by £595. According to the government's MOT record, its advertised mileage is consistent with the latest test. The seller is Williams Liverpool Bmw, based in Liverpool. How to contact the dealer and its opening hours are on this AskCar page.

Stock data as of 5 November 2026.

How we estimate prices and check cars

Price

Fair price: £1,345 (5%) under the AskCar estimate of £25,235.

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 6,897 priced BMW 3 Series adverts across different ages and specifications, as of 5 November 2026.

Time on sale

This 2021 BMW 3 Series has been on sale for at least 50 days.

Price history

AskCar first saw this advert on 16 September 2026 at £24,485. Its asking price is now £23,890, £595 less. The latest price cut was seen on 28 October 2026.

Price changes recorded:

• 16 September 2026: £24,485
• 7 October 2026: £24,390
• 21 October 2026: £23,985
• 28 October 2026: £23,890

Mileage and MOT

MOT, from the government's MOT records (DVSA, the Driver and Vehicle Standards Agency), as of 5 November 2026: valid until 19 February 2027.

It has had 3 MOTs. The latest, on 10 February 2026, passed.

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

Mileage at that test: 21,186 miles, which matches the advertised 21,500 miles.

Advertised mileage is about 33,300 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 £25,995, as of 5 November 2026.

The 3 closest to this car in mileage:

• 2021 BMW 3 Series M Sport, 2.0 diesel saloon, white. Mileage: 20,757 miles. Price: £22,999, £891 less than this car. Dealer: HPL Preston in Preston. AskCar page: https://askcar.co.uk/car/bmw-3-series-2021-8d3664ba8d3f
• 2021 BMW 3 Series M Sport, 2.0 diesel saloon, grey. Mileage: 34,223 miles. Price: £21,999, £1,891 less than this car. Dealer: cinch Corby in Corby. AskCar page: https://askcar.co.uk/car/bmw-3-series-2021-94d29b8fef5b
• 2021 BMW 3 Series M Sport, 2.0 diesel saloon, grey. Mileage: 36,233 miles. Price: £20,995, £2,895 less than this car. Dealer: TF Car Centre in Euxton. AskCar page: https://askcar.co.uk/car/bmw-3-series-2021-dbfa2cd553ed

• The nearest: 2021 BMW 3 Series M Sport, 2.0 diesel saloon, blue, 17 miles from this car. Mileage: 40,000 miles. Price: £21,975, £1,915 less than this car. Dealer: Cottrell Motor Co in Warrington. AskCar page: https://askcar.co.uk/car/bmw-3-series-2021-f6b4d8670c3f