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: 84,028 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

At 84,028 miles, this 2021 BMW 3 Series M Sport has covered about 29,200 more miles than other 2021 BMW 3 Series cars. The dealer is asking £17,685, which is £460 above the AskCar estimate of £17,225. 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 saw this car advertised 161 days ago. Its asking price has since fallen by £700. Our latest MOT record expired on 27 May 2026. Check the current position with the dealer. According to the government's MOT record, its advertised mileage is consistent with the latest test. It is advertised by Bayer Car Sales in Fareham. 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: £460 (2%) over the AskCar estimate of £17,225.

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 161 days.

Price history

AskCar first saw this advert on 28 May 2026 at £18,385. Its asking price is now £17,685, £700 less. The latest price cut was seen on 18 June 2026.

Price changes recorded:

• 28 May 2026: £18,385
• 18 June 2026: £17,685

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 27 May 2026; ask the dealer for the current MOT.

It has had 2 MOTs. The latest, on 19 May 2025, passed.

Advisories at the latest test: nearside rear tyre worn close to legal limit/worn on edge tread very low; offside rear tyre worn close to legal limit/worn on edge tread very low.

Mileage at that test: 53,592 miles, which matches the advertised 84,028 miles.

Advertised mileage is about 29,200 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: 83,092 miles. Price: £17,500, £185 less than this car. Dealer: Magna Motor Group in Warrington. AskCar page: https://askcar.co.uk/car/bmw-3-series-2021-8ddb171dcb59
• 2021 BMW 3 Series M Sport, 2.0 diesel saloon, grey. Mileage: 81,496 miles. Price: £17,798, £113 more than this car. Dealer: Arnold Clark Stoke-on-Trent Vauxhall / Peugeot / Vanstore in Stoke-on-Trent. AskCar page: https://askcar.co.uk/car/bmw-3-series-2021-f0b20af75579
• 2021 BMW 3 Series M Sport, 2.0 diesel saloon, white. Mileage: 87,009 miles. Price: £18,950, £1,265 more than this car. Dealer: Ballinderry Car Sales in Lisburn. AskCar page: https://askcar.co.uk/car/bmw-3-series-2021-1324a3aefdc2

• The nearest: 2021 BMW 3 Series M Sport, 2.0 diesel saloon, blue, 30 miles from this car. Mileage: 51,628 miles. Price: £21,995, £4,310 more than this car. Dealer: The Plough Garage in Farnham. AskCar page: https://askcar.co.uk/car/bmw-3-series-2021-d64a5c9c1bce