2020 BMW 4 Series Gran Coupe 2.0 420d M Sport

Overview

• Make: BMW
• Model: 4 Series Gran Coupe
• Trim: M Sport
• Version: 2.0 420d M Sport Auto RWD Euro 6 (s/s) 5dr (187 bhp)
• Year: 2020
• Mileage: 75,000 miles
• Fuel: Diesel
• Body: Hatchback, 5 doors, 5 seats
• Engine: 2.0 litres, 187 bhp
• Gearbox: Automatic
• Drive: Rear-wheel drive
• Colour: Grey
• CO2: 126 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

This 2020 BMW 4 Series Gran Coupe M Sport is advertised with 75,000 miles, approximately 21,800 above the typical mileage for its age. Priced at £14,490, it is advertised £671 below the AskCar estimate of £15,161. The AskCar estimate uses UK dealer asking prices, including 1,170 BMW 4 Series Gran Coupe adverts, and accounts for the car’s age, mileage and specification. Since we first spotted the advert 57 days ago, the asking price has dropped by £500. The government's MOT record matches its advertised mileage. You can find this car at Aylas Cars in Staines-Upon-Thames. How to contact the dealer and its opening hours are on this AskCar page.

Stock data as of 9 November 2026.

How we estimate prices and check cars

Price

Fair price: £671 (4%) under the AskCar estimate of £15,161.

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 1,170 priced BMW 4 Series Gran Coupe adverts across different ages and specifications, as of 9 November 2026.

A 2020 BMW 4 Series Gran Coupe with the 2.0 diesel engine is typically advertised at £16,000: the median of the 58 for sale on AskCar, as of 9 November 2026.

Time on sale

This 2020 BMW 4 Series Gran Coupe has been on sale for at least 57 days.

Price history

AskCar first saw this advert on 13 September 2026 at £14,990. Its asking price is now £14,490, £500 less. The latest price cut was seen on 1 November 2026.

Price changes recorded:

• 13 September 2026: £14,990
• 13 October 2026: £14,690
• 1 November 2026: £14,490

Mileage and MOT

MOT, from the government's MOT records (DVSA, the Driver and Vehicle Standards Agency), as of 9 November 2026: valid until 14 April 2027.

It has had 5 MOTs. The latest, on 7 April 2026, passed.

Advisories at the latest test: front windscreen wiper blade defective; nearside front tyre worn close to legal limit/worn on edge; offside front tyre slightly damaged/cracking or perishing; and 2 more.

Mileage at that test: 69,106 miles, which matches the advertised 75,000 miles.

Advertised mileage is about 21,800 miles higher than the median mileage of a 2020 BMW 4 Series Gran Coupe on AskCar.

Similar cars

17 other 2020 BMW 4 Series Gran Coupe M Sport 2.0 diesel automatic hatchbacks are for sale at UK dealers, from £13,449 to £22,280, as of 9 November 2026.

The 3 closest to this car in mileage:

• 2020 BMW 4 Series Gran Coupe M Sport, 2.0 diesel hatchback, black. Mileage: 74,000 miles. Price: £17,495, £3,005 more than this car. Dealer: Derwent Motors in Derby. AskCar page: https://askcar.co.uk/car/bmw-4-series-gran-coupe-2020-e5680d7a8c3c
• 2020 BMW 4 Series Gran Coupe M Sport, 2.0 diesel hatchback, grey. Mileage: 76,060 miles. Price: £16,493, £2,003 more than this car. Dealer: Partridge BMW in Eastleigh. AskCar page: https://askcar.co.uk/car/bmw-4-series-gran-coupe-2020-432dbc8a67cc
• 2020 BMW 4 Series Gran Coupe M Sport, 2.0 diesel hatchback, blue. Mileage: 76,124 miles. Price: £14,999, £509 more than this car. Dealer: TU Motors in Luton. AskCar page: https://askcar.co.uk/car/bmw-4-series-gran-coupe-2020-ed56cb42e510

• The nearest: 2020 BMW 4 Series Gran Coupe M Sport, 2.0 diesel hatchback, blue, 14 miles from this car. Mileage: 45,500 miles. Price: £16,500, £2,010 more than this car. Dealer: Car Planet Watford in Watford. AskCar page: https://askcar.co.uk/car/bmw-4-series-gran-coupe-2020-f2726db871a5