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: 21,537 miles
• Fuel: Petrol
• Body: Hatchback, 5 doors, 5 seats
• Engine: 2.0 litres, 181 bhp
• Gearbox: Automatic
• Drive: Rear-wheel drive
• Colour: Blue
• CO2: 156 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

At 21,537 miles, this 2023 BMW 4 Series Gran Coupe M Sport has covered about 6,600 fewer miles than other 2023 BMW 4 Series Gran Coupe cars. Its asking price of £29,499 is £317 below the AskCar estimate of £29,816. To work out the AskCar estimate, we analyse UK dealer adverts for 1,183 BMW 4 Series Gran Coupe cars across different ages and specifications. We have tracked this advert for 2 days. The government's MOT record matches its advertised mileage. It is for sale at Halliwell Jones North Wales BMW in Llandudno Junction. How to contact the dealer and its opening hours are on this AskCar page.

Stock data as of 6 November 2026.

How we estimate prices and check cars

Price

Fair price: £317 (1%) under the AskCar estimate of £29,816.

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 1,183 priced BMW 4 Series Gran Coupe adverts across different ages and specifications, as of 6 November 2026.

A 2023 BMW 4 Series Gran Coupe with the 2.0 petrol engine is typically advertised at £28,600: the median of the 65 for sale on AskCar, as of 6 November 2026.

Time on sale

AskCar first saw this 2023 BMW 4 Series Gran Coupe advertised 2 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 3 October 2026.

Price history

AskCar first saw this advert on 4 November 2026 at £29,499. 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 6 November 2026: valid until 22 June 2027.

It has had one MOT, on 29 May 2026, and passed.

Advisories at the latest test: nearside front tyre slightly damaged/cracking or perishing; offside front tyre slightly damaged/cracking or perishing; both front wipers slightly smearing.

Mileage at that test: 21,537 miles, which matches the advertised 21,537 miles.

Advertised mileage is about 6,600 miles lower than the median mileage of a 2023 BMW 4 Series Gran Coupe on AskCar.

Similar cars

28 other 2023 BMW 4 Series Gran Coupe M Sport 2.0 petrol automatic hatchbacks are for sale at UK dealers, from £22,995 to £32,491, as of 6 November 2026.

The 3 closest to this car in mileage:

• 2023 BMW 4 Series Gran Coupe M Sport, 2.0 petrol hatchback, grey. Mileage: 21,129 miles. Price: £30,500, £1,001 more than this car. Dealer: Listers King's Lynn in King's Lynn. AskCar page: https://askcar.co.uk/car/bmw-4-series-gran-coupe-2023-1dae95709b78
• 2023 BMW 4 Series Gran Coupe M Sport, 2.0 petrol hatchback, grey. Mileage: 21,957 miles. Price: £29,875, £376 more than this car. Dealer: Group 1 Reading BMW in Reading. AskCar page: https://askcar.co.uk/car/bmw-4-series-gran-coupe-2023-776ee4a708b9
• 2023 BMW 4 Series Gran Coupe M Sport, 2.0 petrol hatchback, grey. Mileage: 19,071 miles. Price: £31,981, £2,482 more than this car. Dealer: Bowker Motor Group in Preston. AskCar page: https://askcar.co.uk/car/bmw-4-series-gran-coupe-2023-237f1457a7ab

• The nearest: 2023 BMW 4 Series Gran Coupe M Sport, 2.0 petrol hatchback, black, 50 miles from this car. Mileage: 37,301 miles. Price: £27,499, £2,000 less than this car. Dealer: Halliwell Jones Warrington BMW in Warrington. AskCar page: https://askcar.co.uk/car/bmw-4-series-gran-coupe-2023-26e48c8e4860