2021 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 M Sport Auto RWD Euro 6 5dr (Professional Media) (181 bhp)
• Year: 2021
• Mileage: 99,933 miles
• Fuel: Petrol
• Body: Coupe, 5 doors, 5 seats
• Engine: 2.0 litres, 181 bhp
• Gearbox: Automatic
• Drive: Rear-wheel drive
• Colour: Blue
• CO2: 169 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

At 99,933 miles, this 2021 BMW 4 Series Gran Coupe M Sport has covered about 54,900 more miles than other 2021 BMW 4 Series Gran Coupe cars. Its asking price of £12,498 is £589 below the AskCar estimate of £13,087. 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 first saw this car advertised 40 days ago. Its asking price has since fallen by £500. According to the government's MOT record, its advertised mileage is consistent with the latest test. The seller is CarSupermarket.com Birmingham, based in Birmingham. 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: £589 (4%) under the AskCar estimate of £13,087.

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 2021 BMW 4 Series Gran Coupe with the 2.0 petrol engine is typically advertised at £23,600: the median of the 24 for sale on AskCar, as of 8 November 2026.

Time on sale

This 2021 BMW 4 Series Gran Coupe has been on sale for at least 40 days.

Price history

AskCar first saw this advert on 29 September 2026 at £12,998. Its asking price is now £12,498, £500 less. The latest price cut was seen on 7 November 2026.

Price changes recorded:

• 29 September 2026: £12,998
• 17 October 2026: £12,698
• 7 November 2026: £12,498

Mileage and MOT

MOT, from the government's MOT records (DVSA, the Driver and Vehicle Standards Agency), as of 8 November 2026: valid until 23 September 2027.

It has had 5 MOTs. The latest, on 24 September 2026, passed.

There were no advisories at the latest test.

Mileage at that test: 99,935 miles, which matches the advertised 99,933 miles.

Advertised mileage is about 54,900 miles higher than the median mileage of a 2021 BMW 4 Series Gran Coupe on AskCar.

Similar cars

5 other 2021 BMW 4 Series Gran Coupe M Sport 2.0 petrol automatic coupes are for sale at UK dealers, from £16,999 to £53,950, as of 8 November 2026.

The 3 closest to this car in mileage:

• 2021 BMW 4 Series Gran Coupe M Sport, 2.0 petrol coupe, white. Mileage: 48,905 miles. Price: £16,999, £4,501 more than this car. Dealer: cinch Corby in Corby. AskCar page: https://askcar.co.uk/car/bmw-4-series-gran-coupe-2021-472a14bbbcfd
• 2021 BMW 4 Series Gran Coupe M Sport, 2.0 petrol coupe, orange. Mileage: 47,951 miles. Price: £23,500, £11,002 more than this car. Dealer: Lloyd Blackpool BMW in Blackpool. AskCar page: https://askcar.co.uk/car/bmw-4-series-gran-coupe-2021-7876919f0421
• 2021 BMW 4 Series Gran Coupe M Sport, 2.0 petrol coupe, black. Mileage: 31,416 miles. Price: £18,998, £6,500 more than this car. Dealer: Arnold Clark Dumfries Bmw Mini Geely in Dumfries. AskCar page: https://askcar.co.uk/car/bmw-4-series-gran-coupe-2021-bc8648bd7078