2020 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: 2020
• Mileage: 56,500 miles
• Fuel: Diesel, mild hybrid
• Body: Coupe, 2 doors, 4 seats
• Engine: 2.0 litres, 187 bhp
• Gearbox: Automatic
• Drive: Rear-wheel drive
• Colour: Blue
• CO2: 127 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

With 56,500 miles on the clock, this 2020 BMW 4 Series M Sport has done roughly 14,700 more miles than a typical 2020 BMW 4 Series. The dealer is asking £21,995, which is £1,743 above the AskCar estimate of £20,252. To work out the AskCar estimate, we analyse UK dealer adverts for 1,814 BMW 4 Series cars across different ages and specifications. This car was first seen in our listings data 41 days ago. According to the government's MOT record, its advertised mileage is consistent with the latest test. You can find this car at Grayswood Cars in Haslemere. How to contact the dealer and its opening hours are on this AskCar page.

Stock data as of 4 November 2026.

How we estimate prices and check cars

Price

Above the going rate: £1,743 (8%) over the AskCar estimate of £20,252.

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 1,814 priced BMW 4 Series adverts across different ages and specifications, as of 4 November 2026.

A 2020 BMW 4 Series with the 2.0 diesel engine is typically advertised at £19,500: the median of the 38 for sale on AskCar, as of 4 November 2026.

Time on sale

This 2020 BMW 4 Series has been on sale for at least 41 days.

Price history

AskCar first saw this advert on 24 September 2026 at £21,995. 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 4 November 2026: valid until 6 August 2027.

It failed its MOT on 4 August 2026 (nearside rear tyre tread depth below requirements of 1.6mm; offside rear tyre tread depth below requirements of 1.6mm) and passed later the same day.

Advisories at the latest test: engine and under covers fitted obscuring view to some testable components.

Mileage at that test: 54,797 miles, which matches the advertised 56,500 miles.

Advertised mileage is about 14,700 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 £20,990, as of 4 November 2026.

The 3 closest to this car in mileage:

• 2020 BMW 4 Series M Sport, 2.0 diesel coupe, blue. Mileage: 57,500 miles. Price: £17,490, £4,505 less than this car. Dealer: Spa Motors Mid Wales in Brecon. AskCar page: https://askcar.co.uk/car/bmw-4-series-2020-3dc3542f2247
• 2020 BMW 4 Series M Sport, 2.0 diesel coupe, grey. Mileage: 52,196 miles. Price: £14,300, £7,695 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: 47,070 miles. Price: £16,499, £5,496 less than this car. Dealer: cinch Bellevue in Hook. AskCar page: https://askcar.co.uk/car/bmw-4-series-2020-8d62982a9969