2021 BMW 4 Series 2.0 420d MHT M Sport

Overview

• Make: BMW
• Model: 4 Series
• Trim: M Sport
• Version: 2.0 420d MHT M Sport Auto Euro 6 (s/s) 2dr (187 bhp)
• Year: 2021
• Mileage: 30,035 miles
• Fuel: Diesel, mild hybrid
• Body: Coupe, 2 doors, 4 seats
• Engine: 2.0 litres, 187 bhp
• Gearbox: Automatic
• Colour: Black
• CO2: 128 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

This 2021 BMW 4 Series M Sport has covered 30,035 miles, around 14,000 fewer miles than is typical for its age. Its asking price of £24,849 is £568 below the AskCar estimate of £25,417. The AskCar estimate uses 1,833 UK dealer adverts for the BMW 4 Series, with adjustments for age, mileage, trim, engine and other specifications. This car was first seen in our listings data 1 day ago. According to the government's MOT record, its advertised mileage is consistent with the latest test. The seller is Ocean Plymouth, based in Plymouth. 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: £568 (2%) under the AskCar estimate of £25,417.

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 1,833 priced BMW 4 Series adverts across different ages and specifications, as of 5 November 2026.

A 2021 BMW 4 Series with the 2.0 diesel engine is typically advertised at £24,000: the median of the 149 for sale on AskCar, as of 5 November 2026.

Time on sale

AskCar first saw this 2021 BMW 4 Series advertised 1 day ago. About 4 in 10 of 2021 BMW 4 Series cars are gone from sale within a month of being advertised: 103 of the 246 first advertised between 11 July 2026 and 2 October 2026.

Price history

AskCar first saw this advert on 4 November 2026 at £24,849. 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 22 March 2027.

It has had 3 MOTs. The latest, on 14 March 2026, passed.

There were no advisories at the latest test.

Mileage at that test: 26,377 miles, which matches the advertised 30,035 miles.

Advertised mileage is about 14,000 miles lower than the median mileage of a 2021 BMW 4 Series on AskCar.

Similar cars

35 other 2021 BMW 4 Series M Sport 2.0 diesel automatic coupes are for sale at UK dealers, from £17,490 to £26,500, as of 5 November 2026.

The 3 closest to this car in mileage:

• 2021 BMW 4 Series M Sport, 2.0 diesel coupe, white. Mileage: 32,290 miles. Price: £24,495, £354 less than this car. Dealer: Roadside Motors Edwin May Portadown in Portadown. AskCar page: https://askcar.co.uk/car/bmw-4-series-2021-cb936a91bed3
• 2021 BMW 4 Series M Sport, 2.0 diesel coupe, grey. Mileage: 32,600 miles. Price: £24,995, £146 more than this car. Dealer: NEO Motor Company in Warrington. AskCar page: https://askcar.co.uk/car/bmw-4-series-2021-1b975623a225
• 2021 BMW 4 Series M Sport, 2.0 diesel coupe, black. Mileage: 34,848 miles. Price: £23,995, £854 less than this car. Dealer: A1 Auto Solutions in Maidenhead. AskCar page: https://askcar.co.uk/car/bmw-4-series-2021-5e810c1fe515

• The nearest: 2021 BMW 4 Series M Sport, 2.0 diesel coupe, blue, 103 miles from this car. Mileage: 61,120 miles. Price: £19,490, £5,359 less than this car. Dealer: Imola Automotive in Bristol. AskCar page: https://askcar.co.uk/car/bmw-4-series-2021-8d2779064f3c