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: 70,000 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 is advertised with 70,000 miles, approximately 14,500 above the typical mileage for its age. Its asking price of £14,590 is £547 above the AskCar estimate of £14,043. The AskCar estimate draws on 1,174 BMW 4 Series Gran Coupe adverts across the UK, adjusting for age, mileage, trim, engine and other specifications. We first saw this car advertised 37 days ago. Its asking price has since fallen by £300. According to the government's MOT record, its advertised mileage is consistent with the latest test. It is for sale 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 7 November 2026.

How we estimate prices and check cars

Price

Fair price: £547 (3%) over the AskCar estimate of £14,043.

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 1,174 priced BMW 4 Series Gran Coupe adverts across different ages and specifications, as of 7 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 56 for sale on AskCar, as of 7 November 2026.

Time on sale

This 2020 BMW 4 Series Gran Coupe has been on sale for at least 37 days.

Price history

AskCar first saw this advert on 1 October 2026 at £14,890. Its asking price is now £14,590, £300 less. The latest price cut was seen on 15 October 2026.

Price changes recorded:

• 1 October 2026: £14,890
• 15 October 2026: £14,590

Mileage and MOT

MOT, from the government's MOT records (DVSA, the Driver and Vehicle Standards Agency), as of 7 November 2026: valid until 21 December 2026.

It failed its MOT on 12 December 2025 (nearside front inner tyre has ply or cords exposed) and passed 10 days later, on 22 December 2025.

There were no advisories at the latest test.

Mileage at that test: 60,722 miles, which matches the advertised 70,000 miles.

Advertised mileage is about 14,500 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 7 November 2026.

The 3 closest to this car in mileage:

• 2020 BMW 4 Series Gran Coupe M Sport, 2.0 petrol hatchback, blue. Mileage: 70,881 miles. Price: £14,995, £405 more than this car. Dealer: Yaddlethorpe Motor Company Yaddlethorpe Motor Co in Scunthorpe. AskCar page: https://askcar.co.uk/car/bmw-4-series-gran-coupe-2020-37f60d8ea2be
• 2020 BMW 4 Series Gran Coupe M Sport, 2.0 petrol hatchback, white. Mileage: 67,576 miles. Price: £14,488, £102 less than this car. Dealer: Jeff White Motors in Cardiff. AskCar page: https://askcar.co.uk/car/bmw-4-series-gran-coupe-2020-0d3e85460f48
• 2020 BMW 4 Series Gran Coupe M Sport, 2.0 petrol hatchback, white. Mileage: 72,462 miles. Price: £13,999, £591 less than this car. Dealer: Hendy Car Store in Exeter. AskCar page: https://askcar.co.uk/car/bmw-4-series-gran-coupe-2020-d0d6f801c817

• The nearest: 2020 BMW 4 Series Gran Coupe M Sport, 2.0 petrol hatchback, grey, 14 miles from this car. Mileage: 26,100 miles. Price: £17,499, £2,909 more than this car. Dealer: K Motors London in New Malden. AskCar page: https://askcar.co.uk/car/bmw-4-series-gran-coupe-2020-9421ee076b12