2020 BMW 4 Series 2.0 420d M Sport

Overview

• Make: BMW
• Model: 4 Series
• Trim: M Sport
• Version: 2.0 420d M Sport Auto RWD Euro 6 2dr (Professional Media) (187 bhp)
• Year: 2020
• Mileage: 47,070 miles
• Fuel: Diesel
• Body: Coupe, 2 doors, 4 seats
• Engine: 2.0 litres, 187 bhp
• Gearbox: Automatic
• Drive: Rear-wheel drive
• Colour: Black
• CO2: 149 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

With 47,070 miles on the clock, this 2020 BMW 4 Series M Sport has done roughly 4,000 more miles than a typical 2020 BMW 4 Series. The dealer is asking £16,499, which is £905 below the AskCar estimate of £17,404. To work out the AskCar estimate, we analyse UK dealer adverts for 1,826 BMW 4 Series cars across different ages and specifications. The asking price is now £700 lower than when we first recorded the advert 17 days ago. According to the government's MOT record, its advertised mileage is consistent with the latest test. You can find this car at cinch Bellevue in Hart. 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: £905 (5%) under the AskCar estimate of £17,404.

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 2020 BMW 4 Series with the 2.0 diesel engine is typically advertised at £19,400: the median of the 38 for sale on AskCar, as of 6 November 2026.

Time on sale

This 2020 BMW 4 Series has been on sale for at least 17 days.

Price history

AskCar first saw this advert on 20 October 2026 at £17,199. Its asking price is now £16,499, £700 less. The latest price cut was seen on 27 October 2026.

Price changes recorded:

• 20 October 2026: £17,199
• 27 October 2026: £16,499

Mileage and MOT

MOT, from the government's MOT records (DVSA, the Driver and Vehicle Standards Agency), as of 6 November 2026: valid until 14 September 2027.

It has had 6 MOTs. The latest, on 15 August 2026, passed.

There were no advisories at the latest test.

Mileage at that test: 46,795 miles, which matches the advertised 47,070 miles.

Advertised mileage is about 4,000 miles higher than the median mileage of a 2020 BMW 4 Series on AskCar.

Similar cars

8 other 2020 BMW 4 Series M Sport 2.0 diesel automatic coupes are for sale at UK dealers, from £13,899 to £21,995, as of 6 November 2026.

The 3 closest to this car in mileage:

• 2020 BMW 4 Series M Sport, 2.0 diesel coupe, grey. Mileage: 52,196 miles. Price: £14,100, £2,399 less than this car. Dealer: Car Planet Watford in Watford. AskCar page: https://askcar.co.uk/car/bmw-4-series-2020-e6cde8d9d59e
• 2020 BMW 4 Series M Sport, 2.0 diesel coupe, black. Mileage: 38,500 miles. Price: £17,990, £1,491 more than this car. Dealer: S James Prestige in Essendine. AskCar page: https://askcar.co.uk/car/bmw-4-series-2020-b005aeb8e6ed
• 2020 BMW 4 Series M Sport, 2.0 diesel coupe, blue. Mileage: 56,500 miles. Price: £21,995, £5,496 more than this car. Dealer: Grayswood Cars in Haslemere. AskCar page: https://askcar.co.uk/car/bmw-4-series-2020-7a160effa96a