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: 63,507 miles
• Fuel: Diesel, mild hybrid
• Body: Saloon, 4 doors, 5 seats
• Engine: 2.0 litres, 187 bhp
• Gearbox: Automatic
• Drive: Rear-wheel drive
• Colour: Black
• CO2: 129 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

At 63,507 miles, this 2021 BMW 3 Series M Sport has covered about 8,700 more miles than other 2021 BMW 3 Series cars. The dealer is asking £20,500, which is £322 above the AskCar estimate of £20,178. 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 86 days ago. Its asking price has since fallen by £1,450. Our records show an MOT expiry date of 29 September 2026, which has passed. Ask the dealer for an update. Its advertised mileage matches the government's MOT record. The seller is Eakin Brothers, based in Maydown. 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: £322 (1%) over the AskCar estimate of £20,178.

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 £21,950. Its asking price is now £20,500, £1,450 less. The latest price cut was seen on 5 November 2026.

Price changes recorded:

• 11 August 2026: £21,950
• 11 October 2026: £20,900
• 5 November 2026: £20,500

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 29 September 2026; ask the dealer for the current MOT.

It has had 2 MOTs. The latest, on 6 September 2025, passed.

There were no advisories at the latest test.

Mileage at that test: 47,203 miles, which matches the advertised 63,507 miles.

Advertised mileage is about 8,700 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: 64,000 miles. Price: £18,990, £1,510 less than 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: 63,000 miles. Price: £18,995, £1,505 less than this car. Dealer: House Of Motors in Romford. AskCar page: https://askcar.co.uk/car/bmw-3-series-2021-9b4e92fdc195
• 2021 BMW 3 Series M Sport, 2.0 diesel saloon, grey. Mileage: 65,142 miles. Price: £20,999, £499 more than this car. Dealer: MINI UK at Cotswold Hereford in Hereford. AskCar page: https://askcar.co.uk/car/bmw-3-series-2021-ae6712f0ed9d

• The nearest: 2021 BMW 3 Series M Sport, 2.0 diesel saloon, black, 15 miles from this car. Mileage: 80,000 miles. Price: £17,995, £2,505 less than this car. Dealer: Ilex Car Sales in Limavady. AskCar page: https://askcar.co.uk/car/bmw-3-series-2021-0c07b048caed