2021 BMW 3 Series 2.0 M Sport

Overview

• Make: BMW
• Model: 3 Series
• Trim: M Sport
• Version: 2.0 MHT M Sport Auto Euro 6 4dr
• Year: 2021
• Mileage: 75,000 miles
• Fuel: Diesel, mild hybrid
• Body: Saloon, 4 doors, 5 seats
• Engine: 2.0 litres
• Gearbox: Automatic
• Colour: Grey
• CO2: 129 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

This 2021 BMW 3 Series M Sport has covered 75,000 miles, around 20,200 more miles than is typical for its age. Its asking price of £18,980 is £948 above the AskCar estimate of £18,032. The AskCar estimate uses UK dealer asking prices, including 6,897 BMW 3 Series adverts, and accounts for the car’s age, mileage and specification. We have tracked this advert for 14 days. According to the government's MOT record, its advertised mileage is consistent with the latest test. The seller is Kent Vehicles, based in Herne BAY. 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: £948 (5%) over the AskCar estimate of £18,032.

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 14 days.

Price history

AskCar first saw this advert on 22 October 2026 at £18,980. 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 12 February 2027.

It has had 3 MOTs. The latest, on 11 February 2026, passed.

There were no advisories at the latest test.

Mileage at that test: 69,998 miles, which matches the advertised 75,000 miles.

Advertised mileage is about 20,200 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, grey. Mileage: 75,759 miles. Price: £18,300, £680 less than this car. Dealer: Sytner Select Swindon in Swindon. AskCar page: https://askcar.co.uk/car/bmw-3-series-2021-2a5316b41879
• 2021 BMW 3 Series M Sport, 2.0 diesel saloon, blue. Mileage: 73,370 miles. Price: £17,186, £1,794 less than this car. Dealer: Carbase Lympsham in Lympsham. AskCar page: https://askcar.co.uk/car/bmw-3-series-2021-841b8ab8a8b1
• 2021 BMW 3 Series M Sport, 2.0 diesel saloon, black. Mileage: 77,000 miles. Price: £16,895, £2,085 less than this car. Dealer: Autosmith N.e in Sunderland. AskCar page: https://askcar.co.uk/car/bmw-3-series-2021-d43f1697be8c

• The nearest: 2021 BMW 3 Series M Sport, 2.0 diesel saloon, grey, 3 miles from this car. 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