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: 102,000 miles
• Fuel: Diesel, mild hybrid
• Body: Saloon, 4 doors, 5 seats
• Engine: 2.0 litres, 187 bhp
• Gearbox: Automatic
• Drive: Rear-wheel drive
• Colour: White
• CO2: 129 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

This 2021 BMW 3 Series M Sport has covered 102,000 miles, around 47,200 more miles than is typical for its age. The AskCar estimate for this car is £15,011. It is priced at £16,795, which is £1,784 above that estimate. The AskCar estimate uses 6,897 UK dealer adverts for the BMW 3 Series, with adjustments for age, mileage, trim, engine and other specifications. We first recorded this car for sale 29 days ago. Its advertised mileage matches the government's MOT record. It is advertised by Car Mart in Peterborough. 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

Above the going rate: £1,784 (11%) over the AskCar estimate of £15,011.

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 29 days.

Price history

AskCar first saw this advert on 7 October 2026 at £16,795. Its asking price has not changed.

Mileage and MOT

MOT, from the government's MOT records (DVSA, the Driver and Vehicle Standards Agency), as of 5 November 2026: valid until 1 July 2027.

It failed its MOT on 11 June 2026 (engine MIL inoperative or indicates a malfunction) and passed later the same day.

Advisories at the latest test: front brake pad(s) wearing thin; front brake disc worn, but not excessively.

Mileage at that test: 100,360 miles, which matches the advertised 102,000 miles.

Advertised mileage is about 47,200 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, blue. Mileage: 101,229 miles. Price: £16,495, £300 less than this car. Dealer: Car Bazaar in Sheffield. AskCar page: https://askcar.co.uk/car/bmw-3-series-2021-78d49da53858
• 2021 BMW 3 Series M Sport, 2.0 diesel saloon, white. Mileage: 99,850 miles. Price: £15,995, £800 less than this car. Dealer: Ideal Car Centre in Bilston. AskCar page: https://askcar.co.uk/car/bmw-3-series-2021-3f057f0f212d
• 2021 BMW 3 Series M Sport, 2.0 diesel saloon, black. Mileage: 95,320 miles. Price: £15,395, £1,400 less than this car. Dealer: V12 Sports & Classics Ltd - Hinckley in Hinckley. AskCar page: https://askcar.co.uk/car/bmw-3-series-2021-3942132ae7ed

• The nearest: 2021 BMW 3 Series M Sport, 2.0 diesel saloon, black, 7 miles from this car. Mileage: 44,307 miles. Price: £24,990, £8,195 more than this car. Dealer: Sycamore BMW in Peterborough. AskCar page: https://askcar.co.uk/car/bmw-3-series-2021-acd525e74a91