2020 BMW 4 Series Gran Coupe 2.0 420i M Sport

Overview

• Make: BMW
• Model: 4 Series Gran Coupe
• Trim: M Sport
• Version: 2.0 420i GPF M Sport Auto RWD Euro 6 (s/s) 5dr (181 bhp)
• Year: 2020
• Mileage: 55,459 miles
• Fuel: Petrol
• Body: Hatchback, 5 doors, 5 seats
• Engine: 2.0 litres, 181 bhp
• Gearbox: Automatic
• Drive: Rear-wheel drive
• Colour: White
• CO2: 135 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

This 2020 BMW 4 Series Gran Coupe M Sport has covered 55,459 miles. The dealer is asking £14,950, which is £553 below the AskCar estimate of £15,503. To work out the AskCar estimate, we analyse UK dealer adverts for 1,169 BMW 4 Series Gran Coupe cars across different ages and specifications. Since we first spotted the advert 25 days ago, the asking price has dropped by £400. Its advertised mileage matches the government's MOT record. It is for sale at Car Planet Barnet in New Southgate. How to contact the dealer and its opening hours are on this AskCar page.

Stock data as of 8 November 2026.

How we estimate prices and check cars

Price

Fair price: £553 (3%) under the AskCar estimate of £15,503.

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 1,169 priced BMW 4 Series Gran Coupe adverts across different ages and specifications, as of 8 November 2026.

A 2020 BMW 4 Series Gran Coupe with the 2.0 petrol engine is typically advertised at £16,000: the median of the 57 for sale on AskCar, as of 8 November 2026.

Time on sale

This 2020 BMW 4 Series Gran Coupe has been on sale for at least 25 days.

Price history

AskCar first saw this advert on 14 October 2026 at £15,350. Its asking price is now £14,950, £400 less. The latest price cut was seen on 2 November 2026.

Price changes recorded:

• 14 October 2026: £15,350
• 27 October 2026: £15,050
• 2 November 2026: £14,900
• 8 November 2026: £14,950

Mileage and MOT

MOT, from the government's MOT records (DVSA, the Driver and Vehicle Standards Agency), as of 8 November 2026: valid until 11 June 2027.

It has had 6 MOTs. The latest, on 12 June 2026, passed.

There were no advisories at the latest test.

Mileage at that test: 54,958 miles, which matches the advertised 55,459 miles.

Advertised mileage is about 1,100 miles higher than the median mileage of a 2020 BMW 4 Series Gran Coupe on AskCar.

Similar cars

22 other 2020 BMW 4 Series Gran Coupe M Sport 2.0 petrol automatic hatchbacks are for sale at UK dealers, from £11,495 to £19,850, as of 8 November 2026.

The 3 closest to this car in mileage:

• 2020 BMW 4 Series Gran Coupe M Sport, 2.0 petrol hatchback, black. Mileage: 58,000 miles. Price: £14,995, the same price as this car. Dealer: Raymond Smith Garages in Bedford. AskCar page: https://askcar.co.uk/car/bmw-4-series-gran-coupe-2020-3ed1be86982e
• 2020 BMW 4 Series Gran Coupe M Sport, 2.0 petrol hatchback, grey. Mileage: 59,500 miles. Price: £15,990, £1,040 more than this car. Dealer: M&C Specialist Motors in Abbots Langley. AskCar page: https://askcar.co.uk/car/bmw-4-series-gran-coupe-2020-5c095b699130
• 2020 BMW 4 Series Gran Coupe M Sport, 2.0 petrol hatchback, grey. Mileage: 49,648 miles. Price: £11,495, £3,455 less than this car. Dealer: Wednesburys Car Sales in Wednesbury. AskCar page: https://askcar.co.uk/car/bmw-4-series-gran-coupe-2020-8f183764f741

• The nearest: 2020 BMW 4 Series Gran Coupe M Sport, 2.0 petrol hatchback, grey, 5 miles from this car. Mileage: 43,593 miles. Price: £16,990, £2,040 more than this car. Dealer: Dick Lovett in Potters Bar. AskCar page: https://askcar.co.uk/car/bmw-4-series-gran-coupe-2020-7a9941df0738