2023 BMW 4 Series 2.0 420i M Sport

Overview

• Make: BMW
• Model: 4 Series
• Trim: M Sport
• Version: 2.0 420i M Sport Auto RWD Euro 6 (s/s) 2dr (181 bhp)
• Year: 2023
• Mileage: 38,094 miles
• Fuel: Petrol
• Body: Convertible, 2 doors, 4 seats
• Engine: 2.0 litres, 181 bhp
• Gearbox: Automatic
• Drive: Rear-wheel drive
• Colour: Black
• CO2: 160 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

This 2023 BMW 4 Series M Sport is advertised with 38,094 miles, approximately 9,800 above the typical mileage for its age. Its asking price of £30,975 is £2,830 above the AskCar estimate of £28,145. The AskCar estimate draws on 1,814 BMW 4 Series adverts across the UK, adjusting for age, mileage, trim, engine and other specifications. We first saw this car advertised 86 days ago. Its asking price has since fallen by £500. You can find this car at JMV Cars Ltd of Shorne in Gravesend. How to contact the dealer and its opening hours are on this AskCar page.

Stock data as of 4 November 2026.

How we estimate prices and check cars

Price

Above the going rate: £2,830 (10%) over the AskCar estimate of £28,145.

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 1,814 priced BMW 4 Series adverts across different ages and specifications, as of 4 November 2026.

A 2023 BMW 4 Series with the 2.0 petrol engine is typically advertised at £29,900: the median of the 90 for sale on AskCar, as of 4 November 2026.

Time on sale

This 2023 BMW 4 Series has been on sale for at least 86 days.

Price history

AskCar first saw this advert on 10 August 2026 at £31,475. Its asking price is now £30,975, £500 less. The latest price cut was seen on 17 October 2026.

Price changes recorded:

• 10 August 2026: £31,475
• 17 October 2026: £30,975

Mileage and MOT

Advertised mileage is about 9,800 miles higher than the median mileage of a 2023 BMW 4 Series on AskCar.

Similar cars

34 other 2023 BMW 4 Series M Sport 2.0 petrol automatic convertibles are for sale at UK dealers, from £26,101 to £33,990, as of 4 November 2026.

The 3 closest to this car in mileage:

• 2023 BMW 4 Series M Sport, 2.0 petrol convertible, grey. Mileage: 37,516 miles. Price: £27,899, £3,076 less than this car. Dealer: Motorpoint Edinburgh in Edinburgh. AskCar page: https://askcar.co.uk/car/bmw-4-series-2023-dc51962a578a
• 2023 BMW 4 Series M Sport, 2.0 petrol convertible, black. Mileage: 36,740 miles. Price: £30,000, £975 less than this car. Dealer: Sytner Sheffield BMW in Sheffield. AskCar page: https://askcar.co.uk/car/bmw-4-series-2023-40fd3ac3c53e
• 2023 BMW 4 Series M Sport, 2.0 petrol convertible, green. Mileage: 39,783 miles. Price: £32,491, £1,516 more than this car. Dealer: Your Next Car in Nottingham. AskCar page: https://askcar.co.uk/car/bmw-4-series-2023-6a3e095e2aca

• The nearest: 2023 BMW 4 Series M Sport, 2.0 petrol convertible, grey, 19 miles from this car. Mileage: 23,000 miles. Price: £31,995, £1,020 more than this car. Dealer: Stratstone BMW Tunbridge Wells in Royal Tunbridge Wells. AskCar page: https://askcar.co.uk/car/bmw-4-series-2023-ef18502d2d40