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 RWD Euro 6 (s/s) 2dr (187 bhp)
• Year: 2021
• Mileage: 36,288 miles
• Fuel: Diesel, mild hybrid
• Body: Coupe, 2 doors, 4 seats
• Engine: 2.0 litres, 187 bhp
• Gearbox: Automatic
• Drive: Rear-wheel drive
• Colour: White
• CO2: 128 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

This 2021 BMW 4 Series M Sport is advertised with 36,288 miles, approximately 8,100 below the typical mileage for its age. Priced at £24,500, it is advertised £104 below the AskCar estimate of £24,604. To work out the AskCar estimate, we analyse UK dealer adverts for 1,836 BMW 4 Series cars across different ages and specifications. We have tracked this advert today. According to the government's MOT record, its advertised mileage is consistent with the latest test. The seller is Saxtons.co.uk, based in Chelmsford. How to contact the dealer and its opening hours are on this AskCar page.

Stock data as of 14 November 2026.

How we estimate prices and check cars

Price

Fair price: £104 (under 1%) under the AskCar estimate of £24,604.

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 1,836 priced BMW 4 Series adverts across different ages and specifications, as of 14 November 2026.

A 2021 BMW 4 Series with the 2.0 diesel engine is typically advertised at £23,500: the median of the 150 for sale on AskCar, as of 14 November 2026.

Time on sale

AskCar first saw this 2021 BMW 4 Series advertised today. About 4 in 10 of 2021 BMW 4 Series cars are gone from sale within a month of being advertised: 115 of the 274 first advertised between 14 July 2026 and 11 October 2026.

Price history

AskCar first saw this advert on 14 November 2026 at £24,500. 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 14 November 2026: valid until 12 July 2027.

It has had one MOT, on 13 July 2026, and passed.

There were no advisories at the latest test.

Mileage at that test: 31,789 miles, which matches the advertised 36,288 miles.

Advertised mileage is about 8,100 miles lower than the median mileage of a 2021 BMW 4 Series on AskCar.

Similar cars

33 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 14 November 2026.

The 3 closest to this car in mileage:

• 2021 BMW 4 Series M Sport, 2.0 diesel coupe, black. Mileage: 39,450 miles. Price: £23,499, £1,001 less than this car. Dealer: Halliwell Jones North Wales BMW in Conwy. AskCar page: https://askcar.co.uk/car/bmw-4-series-2021-7856d70da0e4
• 2021 BMW 4 Series M Sport, 2.0 diesel coupe, grey. Mileage: 32,600 miles. Price: £24,995, £495 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, white. Mileage: 32,290 miles. Price: £24,495, the same price as this car. Dealer: Roadside Motors Edwin May Portadown in Portadown. AskCar page: https://askcar.co.uk/car/bmw-4-series-2021-cb936a91bed3

• The nearest: 2021 BMW 4 Series M Sport, 2.0 diesel coupe, blue, 24 miles from this car. Mileage: 57,500 miles. Price: £22,950, £1,550 less than this car. Dealer: Danson Motors in Sidcup. AskCar page: https://askcar.co.uk/car/bmw-4-series-2021-0df77e286ef4