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: 21,129 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 21,129 miles, this 2023 BMW 4 Series Gran Coupe M Sport has covered about 7,000 fewer miles than other 2023 BMW 4 Series Gran Coupe cars. The dealer is asking £30,500, which is £923 above the AskCar estimate of £29,577. 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. This car was first seen in our listings data 10 days ago. The seller is Listers BMW King's Lynn, based in King's Lynn and West Norfolk. 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: £923 (3%) over the AskCar estimate of £29,577.

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 10 days.

Price history

AskCar first saw this advert on 28 October 2026 at £30,500. Its asking price has not changed.

Mileage and MOT

Advertised mileage is about 7,000 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 7 November 2026.

The 3 closest to this car in mileage:

• 2023 BMW 4 Series Gran Coupe M Sport, 2.0 petrol coupe, grey. Mileage: 21,196 miles. Price: £29,890, £610 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, £1,000 less than this car. Dealer: Sytner Select Wakefield in Wakefield. AskCar page: https://askcar.co.uk/car/bmw-4-series-gran-coupe-2023-5b053d259189
• 2023 BMW 4 Series Gran Coupe M Sport, 2.0 petrol coupe, grey. Mileage: 20,873 miles. Price: £30,498, the same price as this car. Dealer: Arnold Clark Stirling Volvo / GWM / BYD in Stirling. AskCar page: https://askcar.co.uk/car/bmw-4-series-gran-coupe-2023-b136427b4c74

• The nearest: 2023 BMW 4 Series Gran Coupe M Sport, 2.0 petrol coupe, black, 66 miles from this car. Mileage: 39,195 miles. Price: £26,795, £3,705 less than this car. Dealer: Parkland Motors in Costock. AskCar page: https://askcar.co.uk/car/bmw-4-series-gran-coupe-2023-2d814c360d1d