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: 73,370 miles
• Fuel: Diesel, mild hybrid
• Body: Saloon, 4 doors, 5 seats
• Engine: 2.0 litres, 187 bhp
• Gearbox: Automatic
• Drive: Rear-wheel drive
• Colour: Blue
• CO2: 129 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

With 73,370 miles on the clock, this 2021 BMW 3 Series M Sport has done roughly 18,500 more miles than a typical 2021 BMW 3 Series. The dealer is asking £17,186, which is £1,514 below the AskCar estimate of £18,700. To work out the AskCar estimate, we analyse UK dealer adverts for 6,897 BMW 3 Series cars across different ages and specifications. We first recorded this advert 78 days ago, and its asking price has since fallen by £1,814. Our records show an MOT expiry date of 3 October 2026, which has passed. Ask the dealer for an update. According to the government's MOT record, its advertised mileage is consistent with the latest test. The seller is Carbase Lympsham, based in Lympsham. 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

Good value: £1,514 (8%) under the AskCar estimate of £18,700.

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 78 days.

Price history

AskCar first saw this advert on 19 August 2026 at £19,000. Its asking price is now £17,186, £1,814 less. The latest price cut was seen on 5 November 2026.

Price changes recorded:

• 19 August 2026: £19,000
• 20 August 2026: £18,779
• 21 August 2026: £18,593
• 22 August 2026: £18,522
• 25 August 2026: £18,496
• 26 August 2026: £18,479
• 27 August 2026: £18,463
• 28 August 2026: £18,272
• 4 September 2026: £18,206
• 9 September 2026: £18,198
• 10 September 2026: £18,187
• 11 September 2026: £18,000
• 18 September 2026: £17,851
• 22 September 2026: £17,714
• 24 September 2026: £17,687
• 25 September 2026: £17,678
• 26 September 2026: £17,643
• 29 September 2026: £17,531
• 30 September 2026: £17,530
• 1 October 2026: £17,486
• 3 October 2026: £17,441
• 9 October 2026: £17,434
• 16 October 2026: £17,350
• 17 October 2026: £17,349
• 20 October 2026: £17,192
• 21 October 2026: £17,189
• 5 November 2026: £17,186

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 3 October 2026; ask the dealer for the current MOT.

It has had 2 MOTs. The latest, on 22 September 2025, passed.

There were no advisories at the latest test.

Mileage at that test: 62,595 miles, which matches the advertised 73,370 miles.

Advertised mileage is about 18,500 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: 73,000 miles. Price: £17,990, £804 more than this car. Dealer: Automotive Cars in Keighley. AskCar page: https://askcar.co.uk/car/bmw-3-series-2021-02531765eb91
• 2021 BMW 3 Series M Sport, 2.0 diesel saloon, grey. Mileage: 75,000 miles. Price: £18,980, £1,794 more than this car. Dealer: Kent Vehicles in Herne Common. AskCar page: https://askcar.co.uk/car/bmw-3-series-2021-db1edad3a28a
• 2021 BMW 3 Series M Sport, 2.0 diesel saloon, white. Mileage: 71,089 miles. Price: £19,799, £2,613 more than this car. Dealer: Wearside Autoparc in Sunderland. AskCar page: https://askcar.co.uk/car/bmw-3-series-2021-3fc30d62e984

• The nearest: 2021 BMW 3 Series M Sport, 2.0 diesel saloon, grey, 17 miles from this car. Mileage: 57,347 miles. Price: £21,000, £3,814 more than this car. Dealer: Sytner Cardiff BMW in Cardiff. AskCar page: https://askcar.co.uk/car/bmw-3-series-2021-2dd0aa390260