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: 20,757 miles
• Fuel: Diesel, mild hybrid
• Body: Saloon, 4 doors, 5 seats
• Engine: 2.0 litres, 187 bhp
• Gearbox: Automatic
• Drive: Rear-wheel drive
• Colour: White
• CO2: 129 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

This 2021 BMW 3 Series M Sport is advertised with 20,757 miles, approximately 34,200 below the typical mileage for its age. The dealer is asking £22,999, which is £3,088 below the AskCar estimate of £26,087. 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 158 days ago, the asking price has dropped by £1,600. The recorded MOT expired on 29 June 2026, so ask the dealer whether it has been renewed. According to the government's MOT record, its advertised mileage is consistent with the latest test. The seller is HPL Preston, based in Preston. 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

Good value: £3,088 (11%) under the AskCar estimate of £26,087.

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 158 days.

Price history

AskCar first saw this advert on 28 May 2026 at £24,599. Its asking price is now £22,999, £1,600 less. The latest price cut was seen on 28 October 2026.

Price changes recorded:

• 28 May 2026: £24,599
• 7 October 2026: £23,499
• 28 October 2026: £22,999

Mileage and MOT

MOT, from the government's MOT records (DVSA, the Driver and Vehicle Standards Agency), as of 2 November 2026: the latest record we hold ran out on 29 June 2026; ask the dealer for the current MOT.

It has had 2 MOTs. The latest, on 11 June 2025, passed.

There were no advisories at the latest test.

Mileage at that test: 18,089 miles, which matches the advertised 20,757 miles.

Advertised mileage is about 34,200 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: 21,500 miles. Price: £23,890, £891 more than this car. Dealer: Williams Liverpool Bmw in Liverpool. AskCar page: https://askcar.co.uk/car/bmw-3-series-2021-498daf880b7f
• 2021 BMW 3 Series M Sport, 2.0 diesel saloon, grey. Mileage: 34,223 miles. Price: £21,999, £1,000 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, £2,004 less than this car. Dealer: TF Car Centre in Euxton. AskCar page: https://askcar.co.uk/car/bmw-3-series-2021-dbfa2cd553ed