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: 20,873 miles
• Fuel: Petrol
• Body: Coupe, 5 doors, 5 seats
• Engine: 2.0 litres, 181 bhp
• Gearbox: Automatic
• Drive: Rear-wheel drive
• Colour: Grey
• CO2: 152 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

At 20,873 miles, this 2023 BMW 4 Series Gran Coupe M Sport has covered about 7,500 fewer miles than other 2023 BMW 4 Series Gran Coupe cars. Its asking price of £30,498 is £940 above the AskCar estimate of £29,558. The AskCar estimate draws on 1,170 BMW 4 Series Gran Coupe adverts across the UK, adjusting for age, mileage, trim, engine and other specifications. This car was first seen in our listings data 8 days ago. According to the government's MOT record, its advertised mileage is consistent with the latest test. The seller is Arnold Clark Stirling Volvo / GWM / BYD, based in Stirling. 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: £940 (3%) over the AskCar estimate of £29,558.

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

This 2023 BMW 4 Series Gran Coupe has been on sale for at least 8 days.

Price history

AskCar first saw this advert on 1 November 2026 at £30,498. 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 9 November 2026: valid until 30 October 2027.

It has had one MOT, on 26 October 2026, and passed.

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

Mileage at that test: 20,943 miles, which matches the advertised 20,873 miles.

Advertised mileage is about 7,500 miles lower 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 9 November 2026.

The 3 closest to this car in mileage:

• 2023 BMW 4 Series Gran Coupe M Sport, 2.0 petrol coupe, grey. Mileage: 21,129 miles. Price: £30,500, the same price as this car. Dealer: Listers BMW King's Lynn in King's Lynn. AskCar page: https://askcar.co.uk/car/bmw-4-series-gran-coupe-2023-ba0f67b34b3a
• 2023 BMW 4 Series Gran Coupe M Sport, 2.0 petrol coupe, grey. Mileage: 21,196 miles. Price: £29,890, £608 less than this car. Dealer: Stratstone BMW Maidstone in Maidstone. AskCar page: https://askcar.co.uk/car/bmw-4-series-gran-coupe-2023-7c2264ee841f
• 2023 BMW 4 Series Gran Coupe M Sport, 2.0 petrol coupe, grey. Mileage: 21,350 miles. Price: £29,500, £998 less than this car. Dealer: Sytner Select Wakefield in Wakefield. AskCar page: https://askcar.co.uk/car/bmw-4-series-gran-coupe-2023-5b053d259189

• The nearest: 2023 BMW 4 Series Gran Coupe M Sport, 2.0 petrol coupe, blue, 23 miles from this car. Mileage: 28,659 miles. Price: £28,498, £2,000 less 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