2023 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 (s/s) 5dr (181 bhp)
• Year: 2023
• Mileage: 40,623 miles
• Fuel: Petrol
• Body: Hatchback, 5 doors, 5 seats
• Engine: 2.0 litres, 181 bhp
• Gearbox: Automatic
• Drive: Rear-wheel drive
• Colour: Green
• CO2: 156 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

With 40,623 miles on the clock, this 2023 BMW 4 Series Gran Coupe M Sport has done roughly 12,300 more miles than a typical 2023 BMW 4 Series Gran Coupe. The AskCar estimate for this car is £27,017. It is priced at £26,421, which is £596 below that estimate. To work out the AskCar estimate, we analyse UK dealer adverts for 1,170 BMW 4 Series Gran Coupe cars across different ages and specifications. The dealer may accept less. This car has been on sale for at least 72 days. Its advertised mileage matches the government's MOT record. It is for sale at Vertu BMW Sunderland in East Boldon. How to contact the dealer and its opening hours are on this AskCar page.

Stock data as of 9 November 2026.

How we estimate prices and check cars

Price

Fair price: £596 (2%) under the AskCar estimate of £27,017.

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 1,170 priced BMW 4 Series Gran Coupe adverts across different ages and specifications, as of 9 November 2026.

A 2023 BMW 4 Series Gran Coupe with the 2.0 petrol engine is typically advertised at £28,700: the median of the 66 for sale on AskCar, as of 9 November 2026.

Time on sale

The dealer may accept less. This 2023 BMW 4 Series Gran Coupe has been on sale for at least 72 days. About half of 2023 BMW 4 Series Gran Coupe cars are gone from sale within a month of being advertised: 73 of the 138 first advertised between 9 July 2026 and 6 October 2026.

Price history

AskCar first saw this advert on 29 August 2026 at £25,752. Its asking price is now £26,421, £669 more.

Price changes recorded:

• 29 August 2026: £25,752
• 22 September 2026: £27,048
• 29 September 2026: £26,957
• 2 October 2026: £26,921
• 7 November 2026: £26,421

Mileage and MOT

MOT, from the government's MOT records (DVSA, the Driver and Vehicle Standards Agency), as of 9 November 2026: valid until 11 January 2027.

It has had one MOT, on 17 December 2025, and passed.

There were no advisories at the latest test.

Mileage at that test: 29,227 miles, which matches the advertised 40,623 miles.

Advertised mileage is about 12,300 miles higher than the median mileage of a 2023 BMW 4 Series Gran Coupe on AskCar.

Similar cars

34 other 2023 BMW 4 Series Gran Coupe M Sport 2.0 petrol automatic hatchbacks are for sale at UK dealers, from £22,995 to £32,490, as of 9 November 2026.

The 3 closest to this car in mileage:

• 2023 BMW 4 Series Gran Coupe M Sport, 2.0 petrol hatchback, white. Mileage: 40,672 miles. Price: £25,995, £426 less than this car. Dealer: Group 1 Chelmsford BMW in Chelmsford. AskCar page: https://askcar.co.uk/car/bmw-4-series-gran-coupe-2023-b414a868e3c5
• 2023 BMW 4 Series Gran Coupe M Sport, 2.0 petrol hatchback, green. Mileage: 40,000 miles. Price: £25,895, £526 less than this car. Dealer: Selekt Motors in Slough. AskCar page: https://askcar.co.uk/car/bmw-4-series-gran-coupe-2023-fc46d9c5e38d
• 2023 BMW 4 Series Gran Coupe M Sport, 2.0 petrol hatchback, black. Mileage: 40,000 miles. Price: £27,495, £1,074 more than this car. Dealer: Sedgley Group in Prestwich. AskCar page: https://askcar.co.uk/car/bmw-4-series-gran-coupe-2023-0025b90823e8

• The nearest: 2023 BMW 4 Series Gran Coupe M Sport, 2.0 petrol hatchback, black, 7 miles from this car. Mileage: 26,676 miles. Price: £29,450, £3,029 more than this car. Dealer: Lloyd Newcastle BMW in Newcastle upon Tyne. AskCar page: https://askcar.co.uk/car/bmw-4-series-gran-coupe-2023-2f91b145901d