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: 63,000 miles
• Fuel: Diesel, mild hybrid
• Body: Saloon, 4 doors, 5 seats
• Engine: 2.0 litres, 187 bhp
• Gearbox: Automatic
• Drive: Rear-wheel drive
• Colour: Grey
• CO2: 129 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

This 2021 BMW 3 Series M Sport is advertised with 63,000 miles on the clock. The dealer is asking £18,995, which is £1,262 below the AskCar estimate of £20,257. To work out the AskCar estimate, we analyse UK dealer adverts for 6,897 BMW 3 Series cars across different ages and specifications. Since we first spotted the advert 86 days ago, the asking price has dropped by £2,000. Ask the dealer why the advert shows fewer miles than the 63,891 recorded at the latest MOT. Our records show an MOT expiry date of 2 September 2026, which has passed. Ask the dealer for an update. You can find this car at House Of Motors in Romford. 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: £1,262 (6%) under the AskCar estimate of £20,257.

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 86 days.

Price history

AskCar first saw this advert on 11 August 2026 at £20,995. Its asking price is now £18,995, £2,000 less. The latest price cut was seen on 4 November 2026.

Price changes recorded:

• 11 August 2026: £20,995
• 15 August 2026: £19,995
• 28 September 2026: £19,495
• 30 September 2026: £19,995
• 4 November 2026: £18,995

Mileage and MOT

MOT, from the government's MOT records (DVSA, the Driver and Vehicle Standards Agency), as of 5 November 2026: the latest record we hold ran out on 2 September 2026; ask the dealer for the current MOT.

It has had 4 MOTs. The latest, on 20 July 2026, passed.

Advisories at the latest test: nearside front shock absorbers has light misting of oil; offside front shock absorbers has light misting of oil.

Mileage at that test: 63,891 miles. The advert says 63,000 miles, fewer than the MOT record, so ask the dealer which is right.

Advertised mileage is about 8,200 miles higher 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: 63,507 miles. Price: £20,500, £1,505 more than this car. Dealer: Eakin Brothers in Londonderry. AskCar page: https://askcar.co.uk/car/bmw-3-series-2021-4301f7100f0b
• 2021 BMW 3 Series M Sport, 2.0 diesel saloon, grey. Mileage: 64,000 miles. Price: £18,990, the same price as this car. Dealer: Dawn Motors in Canterbury. AskCar page: https://askcar.co.uk/car/bmw-3-series-2021-97a59b366866
• 2021 BMW 3 Series M Sport, 2.0 diesel saloon, grey. Mileage: 61,113 miles. Price: £23,495, £4,500 more than this car. Dealer: Top Cars Telford in Dawley. AskCar page: https://askcar.co.uk/car/bmw-3-series-2021-7cf302f2574f

• The nearest: 2021 BMW 3 Series M Sport, 2.0 diesel saloon, white, 8 miles from this car. Mileage: 47,469 miles. Price: £22,495, £3,500 more than this car. Dealer: Kaz Executive Travel in Basildon. AskCar page: https://askcar.co.uk/car/bmw-3-series-2021-8eb97b842df9