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: 31,416 miles
• Fuel: Petrol
• Body: Coupe, 5 doors, 5 seats
• Engine: 2.0 litres, 181 bhp
• Gearbox: Automatic
• Drive: Rear-wheel drive
• Colour: Black
• CO2: 169 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

This 2021 BMW 4 Series Gran Coupe M Sport has covered 31,416 miles, around 13,600 fewer miles than is typical for its age. Priced at £18,998, it is advertised £1,666 below the AskCar estimate of £20,664. To work out the AskCar estimate, we analyse UK dealer adverts for 1,169 BMW 4 Series Gran Coupe cars across different ages and specifications. It first appeared in our advert records 1 day ago. According to the government's MOT record, its advertised mileage is consistent with the latest test. The seller is Arnold Clark Dumfries Bmw Mini Geely, based in Dumfries. 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

Good value: £1,666 (8%) under the AskCar estimate of £20,664.

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

AskCar first saw this 2021 BMW 4 Series Gran Coupe advertised 1 day ago.

Price history

AskCar first saw this advert on 7 November 2026 at £18,998. 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 22 October 2027.

It has had 4 MOTs. The latest, on 23 October 2026, passed.

There were no advisories at the latest test.

Mileage at that test: 31,423 miles, which matches the advertised 31,416 miles.

Advertised mileage is about 13,600 miles lower 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 £12,498 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, orange. Mileage: 47,951 miles. Price: £23,500, £4,502 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, white. Mileage: 48,905 miles. Price: £16,999, £1,999 less 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, black. Mileage: 10,437 miles. Price: £22,000, £3,002 more than this car. Dealer: Sytner Cardiff BMW in Cardiff. AskCar page: https://askcar.co.uk/car/bmw-4-series-gran-coupe-2021-5fe062b2aa3b

• The nearest: 2021 BMW 4 Series Gran Coupe M Sport, 2.0 petrol coupe, black, 74 miles from this car. Price: £53,950, £34,952 more than this car. Dealer: Van Mossel Jacksons in Isle of Whithorn. AskCar page: https://askcar.co.uk/car/bmw-4-series-gran-coupe-2021-b080a3647310