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: 26,100 miles
• Fuel: Petrol
• Body: Hatchback, 5 doors, 5 seats
• Engine: 2.0 litres, 181 bhp
• Gearbox: Automatic
• Drive: Rear-wheel drive
• Colour: Grey
• CO2: 135 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

This 2020 BMW 4 Series Gran Coupe M Sport has covered 26,100 miles, around 27,100 fewer miles than is typical for its age. Its asking price of £17,499 is £733 below the AskCar estimate of £18,232. 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. We first saw this car advertised 107 days ago. Its asking price has since fallen by £1,501. The government's MOT record matches its advertised mileage. It is for sale at K Motors London in New Malden. 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: £733 (4%) under the AskCar estimate of £18,232.

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 petrol 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 107 days.

Price history

AskCar first saw this advert on 25 July 2026 at £19,000. Its asking price is now £17,499, £1,501 less. The latest price cut was seen on 6 November 2026.

Price changes recorded:

• 25 July 2026: £19,000
• 27 July 2026: £18,500
• 11 August 2026: £18,300
• 1 September 2026: £18,000
• 5 September 2026: £18,100
• 4 October 2026: £17,999
• 6 November 2026: £17,499

Mileage and MOT

MOT, from the government's MOT records (DVSA, the Driver and Vehicle Standards Agency), as of 9 November 2026: valid until 23 March 2027.

It has had 4 MOTs. The latest, on 19 March 2026, passed.

Advisories at the latest test: offside rear child seat fitted not allowing full inspection of adult belt.

Mileage at that test: 25,220 miles, which matches the advertised 26,100 miles.

Advertised mileage is about 27,100 miles lower 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 9 November 2026.

The 3 closest to this car in mileage:

• 2020 BMW 4 Series Gran Coupe M Sport, 2.0 petrol hatchback, white. Mileage: 20,680 miles. Price: £18,500, £1,001 more than this car. Dealer: Car Planet Watford in Watford. AskCar page: https://askcar.co.uk/car/bmw-4-series-gran-coupe-2020-aed8b2d09398
• 2020 BMW 4 Series Gran Coupe M Sport, 2.0 petrol hatchback, white. Mileage: 32,760 miles. Price: £17,295, £204 less than this car. Dealer: V12 Sports & Classics Ltd -Worksop in Worksop. AskCar page: https://askcar.co.uk/car/bmw-4-series-gran-coupe-2020-4c05dfb5a163
• 2020 BMW 4 Series Gran Coupe M Sport, 2.0 petrol hatchback, black. Mileage: 19,206 miles. Price: £19,850, £2,351 more than this car. Dealer: Sytner Land Rover Conwy in Conwy. AskCar page: https://askcar.co.uk/car/bmw-4-series-gran-coupe-2020-c19491f67622

• The nearest: 2020 BMW 4 Series Gran Coupe M Sport, 2.0 petrol hatchback, white, 14 miles from this car. Mileage: 70,000 miles. Price: £14,590, £2,909 less than this car. Dealer: Aylas Cars in Slough. AskCar page: https://askcar.co.uk/car/bmw-4-series-gran-coupe-2020-ee363e8dcd3a