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: 49,648 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

At 49,648 miles, this 2020 BMW 4 Series Gran Coupe M Sport has covered about 4,700 fewer miles than other 2020 BMW 4 Series Gran Coupe cars. The AskCar estimate for this car is £16,021, but it is priced at £11,495, a difference of £4,526. Ask the dealer to confirm the price and vehicle details. The AskCar estimate uses UK dealer asking prices, including 1,169 BMW 4 Series Gran Coupe adverts, and accounts for the car’s age, mileage and specification. We have tracked this advert for 112 days. According to the government's MOT record, its advertised mileage is consistent with the latest test. The seller is Wednesburys Car Sales, based in Wednesbury. 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

Far below the going rate: £4,526 (28%) under the AskCar estimate of £16,021. Worth asking the dealer why.

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 112 days.

Price history

AskCar first saw this advert on 19 July 2026 at £11,495. 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 8 November 2026: valid until 9 March 2027.

It failed its MOT on 10 March 2026 (nearside front road wheel fixing missing; offside front road wheel fixing missing) and passed later the same day.

Advisories at the latest test: tpms light on.

Mileage at that test: 48,416 miles, which matches the advertised 49,648 miles.

Advertised mileage is about 4,700 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 £11,995 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, white. Mileage: 45,750 miles. Price: £15,860, £4,365 more than this car. Dealer: Hilton Garage in Derby. AskCar page: https://askcar.co.uk/car/bmw-4-series-gran-coupe-2020-ec14e2f523d8
• 2020 BMW 4 Series Gran Coupe M Sport, 2.0 petrol hatchback, white. Mileage: 45,285 miles. Price: £16,399, £4,904 more than this car. Dealer: Eastern Western Motor Group Car Deal Warehouse Superstore Newbridge in Edinburgh. AskCar page: https://askcar.co.uk/car/bmw-4-series-gran-coupe-2020-bfe5b7e601bb
• 2020 BMW 4 Series Gran Coupe M Sport, 2.0 petrol hatchback, white. Mileage: 44,101 miles. Price: £15,960, £4,465 more than this car. Dealer: Hippo Motor Group Peterborough in Peterborough. AskCar page: https://askcar.co.uk/car/bmw-4-series-gran-coupe-2020-4e846158bdc0

• The nearest: 2020 BMW 4 Series Gran Coupe M Sport, 2.0 petrol hatchback, black, 28 miles from this car. Mileage: 38,507 miles. Price: £16,260, £4,765 more than this car. Dealer: Hilton Garage in Derby. AskCar page: https://askcar.co.uk/car/bmw-4-series-gran-coupe-2020-8a50a56cdac8