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 GPF M Sport Auto RWD Euro 6 (s/s) 5dr (181 bhp)
• Year: 2021
• Mileage: 61,964 miles
• Fuel: Petrol
• Body: Hatchback, 5 doors, 5 seats
• Engine: 2.0 litres, 181 bhp
• Gearbox: Automatic
• Drive: Rear-wheel drive
• Colour: Black
• CO2: 135 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

At 61,964 miles, this 2021 BMW 4 Series Gran Coupe M Sport has covered about 17,000 more miles than other 2021 BMW 4 Series Gran Coupe cars. Its asking price of £15,460 is £1,067 below the AskCar estimate of £16,527. The AskCar estimate uses UK dealer asking prices, including 1,174 BMW 4 Series Gran Coupe adverts, and accounts for the car’s age, mileage and specification. We first recorded this advert 3 days ago, and its asking price has since fallen by £130. Its advertised mileage matches the government's MOT record. The seller is Big Motoring World Norwich, based in Norwich. 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: £1,067 (6%) under the AskCar estimate of £16,527.

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 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 7 November 2026.

Time on sale

AskCar first saw this 2021 BMW 4 Series Gran Coupe advertised 3 days ago.

Price history

AskCar first saw this advert on 4 November 2026 at £15,590. Its asking price is now £15,460, £130 less. The latest price cut was seen on 7 November 2026.

Price changes recorded:

• 5 November 2026: £15,590
• 6 November 2026: £15,600
• 7 November 2026: £15,460

Mileage and MOT

MOT, from the government's MOT records (DVSA, the Driver and Vehicle Standards Agency), as of 7 November 2026: valid until 11 June 2027.

It failed its MOT on 10 June 2026 (offside rear tyre tread depth below requirements of 1.6mm) and passed 2 days later, on 12 June 2026.

There were no advisories at the latest test.

Mileage at that test: 58,495 miles, which matches the advertised 61,964 miles.

Advertised mileage is about 17,000 miles higher than the median mileage of a 2021 BMW 4 Series Gran Coupe on AskCar.

Similar cars

7 other 2021 BMW 4 Series Gran Coupe M Sport 2.0 petrol automatic hatchbacks are for sale at UK dealers, from £15,990 to £26,250, as of 7 November 2026.

The 3 closest to this car in mileage:

• 2021 BMW 4 Series Gran Coupe M Sport, 2.0 petrol hatchback, blue. Mileage: 55,007 miles. Price: £15,990, £530 more than this car. Dealer: cartime Rochdale in Rochdale. AskCar page: https://askcar.co.uk/car/bmw-4-series-gran-coupe-2021-95b51c847970
• 2021 BMW 4 Series Gran Coupe M Sport, 2.0 petrol hatchback, blue. Mileage: 51,800 miles. Price: £16,995, £1,535 more than this car. Dealer: DGA Cars in Downham Market. AskCar page: https://askcar.co.uk/car/bmw-4-series-gran-coupe-2021-b34f097e98bd
• 2021 BMW 4 Series Gran Coupe M Sport, 2.0 petrol hatchback, blue. Mileage: 51,460 miles. Price: £16,995, £1,535 more than this car. Dealer: Shelldrakes Specialist Cars in Shefford. AskCar page: https://askcar.co.uk/car/bmw-4-series-gran-coupe-2021-a15acf6b8c80