2021 BMW 3 Series 2.0 320d MHT M Sport

Overview

• Make: BMW
• Model: 3 Series
• Trim: M Sport
• Version: 2.0 320d MHT M Sport Auto RWD Euro 6 (s/s) 4dr (187 bhp)
• Year: 2021
• Mileage: 48,000 miles
• Fuel: Diesel, mild hybrid
• Body: Saloon, 4 doors, 5 seats
• Engine: 2.0 litres, 187 bhp
• Gearbox: Automatic
• Drive: Rear-wheel drive
• Colour: Black
• CO2: 129 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

This 2021 BMW 3 Series M Sport is advertised with 48,000 miles, approximately 6,800 below the typical mileage for its age. Its asking price of £20,995 is £1,274 below the AskCar estimate of £22,269. The AskCar estimate draws on 6,897 BMW 3 Series adverts across the UK, adjusting for age, mileage, trim, engine and other specifications. Since we first spotted the advert 111 days ago, the asking price has dropped by £955. We checked its advertised mileage against the government's MOT record, and they match. You can find this car at Top Tier Autos in Cheadle. 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: £1,274 (5%) under the AskCar estimate of £22,269.

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 111 days.

Price history

AskCar first saw this advert on 17 July 2026 at £21,950. Its asking price is now £20,995, £955 less. The latest price cut was seen on 20 September 2026.

Price changes recorded:

• 18 July 2026: £21,950
• 20 September 2026: £20,995

Mileage and MOT

MOT, from the government's MOT records (DVSA, the Driver and Vehicle Standards Agency), as of 5 November 2026: valid until 22 April 2027.

It failed its MOT on 21 April 2026 (offside rear tyre tread depth below requirements of 1.6mm; nearside rear tyre tread depth below requirements of 1.6mm; rear brake pad(s) worn down to wear indicator) and passed 1 day later, on 22 April 2026.

There were no advisories at the latest test.

Mileage at that test: 46,605 miles, which matches the advertised 48,000 miles.

Advertised mileage is about 6,800 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, black. Mileage: 47,896 miles. Price: £21,990, £995 more than this car. Dealer: Haywards Automotive in Canvey Island. AskCar page: https://askcar.co.uk/car/bmw-3-series-2021-131e162c038b
• 2021 BMW 3 Series M Sport, 2.0 diesel saloon, black. Mileage: 47,618 miles. Price: £21,998, £1,003 more than this car. Dealer: Arnold Clark Shiremoor Motorstore / MG / BYD / Vanstore in Shiremoor. AskCar page: https://askcar.co.uk/car/bmw-3-series-2021-bafbf244cf9f
• 2021 BMW 3 Series M Sport, 2.0 diesel saloon, grey. Mileage: 48,500 miles. Price: £21,790, £795 more than this car. Dealer: S James Prestige in Essendine. AskCar page: https://askcar.co.uk/car/bmw-3-series-2021-02552e2d4180

• The nearest: 2021 BMW 3 Series M Sport, 2.0 diesel saloon, white, 13 miles from this car. Mileage: 41,000 miles. Price: £24,995, £4,000 more than this car. Dealer: A C G Motors in Manchester. AskCar page: https://askcar.co.uk/car/bmw-3-series-2021-cc6202b2ebe0