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 5dr Step (181 bhp)
• Year: 2023
• Mileage: 29,037 miles
• Fuel: Petrol
• Body: Coupe, 5 doors, 5 seats
• Engine: 2.0 litres, 181 bhp
• Gearbox: Automatic
• Drive: Rear-wheel drive
• Colour: White
• CO2: 152 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

This 2023 BMW 4 Series Gran Coupe M Sport has covered 29,037 miles. The dealer is asking £28,250, which is £276 below the AskCar estimate of £28,526. To work out the AskCar estimate, we analyse UK dealer adverts for 1,174 BMW 4 Series Gran Coupe cars across different ages and specifications. We have tracked this advert for 7 days. According to the government's MOT record, its advertised mileage is consistent with the latest test. The seller is Sytner Swansea MINI, based in Swansea. How to contact the dealer and its opening hours are on this AskCar page.

Stock data as of 7 November 2026.

How we estimate prices and check cars

Price

Fair price: £276 (under 1%) under the AskCar estimate of £28,526.

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 1,174 priced BMW 4 Series Gran Coupe adverts across different ages and specifications, as of 7 November 2026.

A 2023 BMW 4 Series Gran Coupe with the 2.0 petrol engine is typically advertised at £29,000: the median of the 63 for sale on AskCar, as of 7 November 2026.

Time on sale

This 2023 BMW 4 Series Gran Coupe has been on sale for at least 7 days.

Price history

AskCar first saw this advert on 31 October 2026 at £28,250. 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 7 November 2026: valid until 27 April 2027.

It failed its MOT on 13 April 2026 (offside front outer tyre has a cut in excess of the requirements deep enough to reach the ply or cords wall) and passed 1 day later, on 14 April 2026.

There were no advisories at the latest test.

Mileage at that test: 23,064 miles, which matches the advertised 29,037 miles.

Advertised mileage is about 900 miles higher than the median mileage of a 2023 BMW 4 Series Gran Coupe on AskCar.

Similar cars

21 other 2023 BMW 4 Series Gran Coupe M Sport 2.0 petrol automatic coupes are for sale at UK dealers, from £23,990 to £33,498, as of 7 November 2026.

The 3 closest to this car in mileage:

• 2023 BMW 4 Series Gran Coupe M Sport, 2.0 petrol coupe, blue. Mileage: 28,659 miles. Price: £28,498, £248 more than this car. Dealer: Arnold Clark Glasgow South Street Vauxhall Peugeot Citroen Ds Mazda Vanstorelepas in Glasgow. AskCar page: https://askcar.co.uk/car/bmw-4-series-gran-coupe-2023-49ea041f5246
• 2023 BMW 4 Series Gran Coupe M Sport, 2.0 petrol coupe, white. Mileage: 28,591 miles. Price: £28,293, the same price as this car. Dealer: Stratstone Bmw Hull in Kingston upon Hull. AskCar page: https://askcar.co.uk/car/bmw-4-series-gran-coupe-2023-199bacfcd658
• 2023 BMW 4 Series Gran Coupe M Sport, 2.0 petrol coupe, black. Mileage: 26,676 miles. Price: £29,450, £1,200 more than this car. Dealer: Lloyd Newcastle BMW in Newcastle upon Tyne. AskCar page: https://askcar.co.uk/car/bmw-4-series-gran-coupe-2023-3b430c57d2f8

• The nearest: 2023 BMW 4 Series Gran Coupe M Sport, 2.0 petrol coupe, blue, 3 miles from this car. Mileage: 12,295 miles. Price: £27,549, £701 less than this car. Dealer: Motorpoint Swansea in Swansea. AskCar page: https://askcar.co.uk/car/bmw-4-series-gran-coupe-2023-bc27fe7ce08a