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: 26,449 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

The advertised mileage for this 2023 BMW 4 Series Gran Coupe M Sport is 26,449 miles. Its asking price of £28,632 is £585 below the AskCar estimate of £29,217. 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. The asking price is now £753 lower than when we first recorded the advert 25 days ago. According to the government's MOT record, its advertised mileage is consistent with the latest test. The seller is Snows BMW Portsmouth, based in Portsmouth. 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: £585 (2%) under the AskCar estimate of £29,217.

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

This 2023 BMW 4 Series Gran Coupe has been on sale for at least 25 days.

Price history

AskCar first saw this advert on 14 October 2026 at £29,385. Its asking price is now £28,632, £753 less. The latest price cut was seen on 4 November 2026.

Price changes recorded:

• 14 October 2026: £29,385
• 18 October 2026: £29,181
• 22 October 2026: £28,997
• 30 October 2026: £28,957
• 4 November 2026: £28,632

Mileage and MOT

MOT, from the government's MOT records (DVSA, the Driver and Vehicle Standards Agency), as of 8 November 2026: valid until 30 March 2027.

It has had one MOT, on 12 March 2026, and passed.

There were no advisories at the latest test.

Mileage at that test: 22,197 miles, which matches the advertised 26,449 miles.

Advertised mileage is about 1,700 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, black. Mileage: 26,676 miles. Price: £29,450, £818 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, £133 less than this car. Dealer: Halliwell Jones Warrington BMW in Warrington. AskCar page: https://askcar.co.uk/car/bmw-4-series-gran-coupe-2023-318c6cefb13f
• 2023 BMW 4 Series Gran Coupe M Sport, 2.0 petrol hatchback, grey. Mileage: 27,884 miles. Price: £28,795, £163 more than this car. Dealer: Sandown Group Avocado Newbury in Newbury. AskCar page: https://askcar.co.uk/car/bmw-4-series-gran-coupe-2023-2354110ab1f1

• The nearest: 2023 BMW 4 Series Gran Coupe M Sport, 2.0 petrol hatchback, white, 18 miles from this car. Mileage: 12,309 miles. Price: £32,192, £3,560 more than this car. Dealer: Partridge BMW in Eastleigh. AskCar page: https://askcar.co.uk/car/bmw-4-series-gran-coupe-2023-2251285b0cc8