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: 24,963 miles
• Fuel: Petrol
• Body: Hatchback, 5 doors, 5 seats
• Engine: 2.0 litres, 181 bhp
• Gearbox: Automatic
• Drive: Rear-wheel drive
• Colour: Grey
• CO2: 156 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

This 2023 BMW 4 Series Gran Coupe M Sport is advertised with 24,963 miles, approximately 3,200 below the typical mileage for its age. Priced at £27,100, it is advertised £2,315 below the AskCar estimate of £29,415. 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 3 days ago. We checked its advertised mileage against the government's MOT record, and they match. It is for sale at Car Planet Watford in Rickmansworth. 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: £2,315 (7%) under the AskCar estimate of £29,415.

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 2023 BMW 4 Series Gran Coupe with the 2.0 petrol engine is typically advertised at £28,900: the median of the 64 for sale on AskCar, as of 8 November 2026.

Time on sale

AskCar first saw this 2023 BMW 4 Series Gran Coupe advertised 3 days ago. About half of 2023 BMW 4 Series Gran Coupe cars are gone from sale within a month of being advertised: 73 of the 135 first advertised between 9 July 2026 and 5 October 2026.

Price history

AskCar first saw this advert on 5 November 2026 at £27,100. 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 27 May 2027.

It failed its MOT on 28 May 2026 (nearside front headlamp aim too low) and passed later the same day.

Advisories at the latest test: offside front tyre is runflat type tyre other tyres are non run flat type; nsf nsr andosf are at 3mm tread depth.

Mileage at that test: 22,247 miles, which matches the advertised 24,963 miles.

Advertised mileage is about 3,200 miles lower than the median mileage of a 2023 BMW 4 Series Gran Coupe on AskCar.

Similar cars

31 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 8 November 2026.

The 3 closest to this car in mileage:

• 2023 BMW 4 Series Gran Coupe M Sport, 2.0 petrol hatchback, grey. Mileage: 26,449 miles. Price: £28,632, £1,532 more than this car. Dealer: Snows BMW Portsmouth in Portsmouth. AskCar page: https://askcar.co.uk/car/bmw-4-series-gran-coupe-2023-13ac6035cc23
• 2023 BMW 4 Series Gran Coupe M Sport, 2.0 petrol hatchback, black. Mileage: 26,676 miles. Price: £29,450, £2,350 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
• 2023 BMW 4 Series Gran Coupe M Sport, 2.0 petrol hatchback, blue. Mileage: 27,777 miles. Price: £28,499, £1,399 more than this car. Dealer: Halliwell Jones Warrington BMW in Warrington. AskCar page: https://askcar.co.uk/car/bmw-4-series-gran-coupe-2023-318c6cefb13f

• The nearest: 2023 BMW 4 Series Gran Coupe M Sport, 2.0 petrol hatchback, green, 10 miles from this car. Mileage: 35,510 miles. Price: £27,000, £100 less than this car. Dealer: MB Brent Park in London. AskCar page: https://askcar.co.uk/car/bmw-4-series-gran-coupe-2023-0af79583d2b2