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 4WD Euro 6 (s/s) 2dr (187 bhp)
• Year: 2021
• Mileage: 63,319 miles
• Fuel: Diesel, mild hybrid
• Body: Coupe, 2 doors, 4 seats
• Engine: 2.0 litres, 187 bhp
• Gearbox: Automatic
• Drive: Four-wheel drive
• Colour: Blue
• CO2: 135 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

At 63,319 miles, this 2021 BMW 4 Series M Sport has covered about 19,300 more miles than other 2021 BMW 4 Series cars. Priced at £21,558, it is advertised £4 above the AskCar estimate of £21,554. To work out the AskCar estimate, we analyse UK dealer adverts for 1,826 BMW 4 Series cars across different ages and specifications. We first saw this car advertised 162 days ago. Its asking price has since fallen by £3,441. Our latest MOT record expired on 7 March 2026. Check the current position with the dealer. We checked its advertised mileage against the government's MOT record, and they match. The seller is Stebbings Car Superstore Kings Lynn, based in Kings Lynn. How to contact the dealer and its opening hours are on this AskCar page.

Stock data as of 6 November 2026.

How we estimate prices and check cars

Price

Fair price: £4 (under 1%) over the AskCar estimate of £21,554.

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 1,826 priced BMW 4 Series adverts across different ages and specifications, as of 6 November 2026.

A 2021 BMW 4 Series with the 2.0 diesel engine is typically advertised at £23,800: the median of the 148 for sale on AskCar, as of 6 November 2026.

Time on sale

This 2021 BMW 4 Series has been on sale for at least 162 days.

Price history

AskCar first saw this advert on 28 May 2026 at £24,999. Its asking price is now £21,558, £3,441 less. The latest price cut was seen on 13 October 2026.

Price changes recorded:

• 28 May 2026: £24,999
• 7 July 2026: £23,999
• 14 July 2026: £22,999
• 17 August 2026: £22,558
• 27 August 2026: £21,799
• 13 October 2026: £21,558

Mileage and MOT

MOT, from the government's MOT records (DVSA, the Driver and Vehicle Standards Agency), as of 6 November 2026: the latest record we hold ran out on 7 March 2026; ask the dealer for the current MOT.

It has had one MOT, on 8 March 2025, and passed.

There were no advisories at the latest test.

Mileage at that test: 47,165 miles, which matches the advertised 63,319 miles.

Advertised mileage is about 19,300 miles higher 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 6 November 2026.

The 3 closest to this car in mileage:

• 2021 BMW 4 Series M Sport, 2.0 diesel coupe, blue. Mileage: 63,074 miles. Price: £22,498, £940 more than this car. Dealer: BMW Direct in Inverness. AskCar page: https://askcar.co.uk/car/bmw-4-series-2021-4949c9dace72
• 2021 BMW 4 Series M Sport, 2.0 diesel coupe, white. Mileage: 64,000 miles. Price: £20,490, £1,068 less than this car. Dealer: Car Choice Teeside in Teesside. AskCar page: https://askcar.co.uk/car/bmw-4-series-2021-4ddcbca29778
• 2021 BMW 4 Series M Sport, 2.0 diesel coupe, blue. Mileage: 61,120 miles. Price: £19,490, £2,068 less than this car. Dealer: Imola Automotive in Bristol. AskCar page: https://askcar.co.uk/car/bmw-4-series-2021-8d2779064f3c

• The nearest: 2021 BMW 4 Series M Sport, 2.0 diesel coupe, blue, 30 miles from this car. Mileage: 95,385 miles. Price: £18,900, £2,658 less than this car. Dealer: Elton Cars in Peterborough. AskCar page: https://askcar.co.uk/car/bmw-4-series-2021-2efc3e00610e