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: 25,965 miles
• Fuel: Petrol
• Body: Convertible, 2 doors, 4 seats
• Engine: 2.0 litres, 181 bhp
• Gearbox: Automatic
• Drive: Rear-wheel drive
• Colour: Grey
• CO2: 160 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

This 2023 BMW 4 Series M Sport is advertised with 25,965 miles, approximately 2,200 below the typical mileage for its age. Priced at £32,317, it is advertised £2,331 above the AskCar estimate of £29,986. The AskCar estimate uses 1,805 UK dealer adverts for the BMW 4 Series, with adjustments for age, mileage, trim, engine and other specifications. We first recorded this advert 60 days ago, and its asking price has since fallen by £1,777. The seller is MINI UK at Vertu Exeter MINI, based in Exeter. 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: £2,331 (7%) over the AskCar estimate of £29,986.

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 1,805 priced BMW 4 Series adverts across different ages and specifications, as of 9 November 2026.

A 2023 BMW 4 Series with the 2.0 petrol engine is typically advertised at £29,500: the median of the 85 for sale on AskCar, as of 9 November 2026.

Time on sale

This 2023 BMW 4 Series has been on sale for at least 60 days.

Price history

AskCar first saw this advert on 10 September 2026 at £34,094. Its asking price is now £32,317, £1,777 less. The latest price cut was seen on 7 November 2026.

Price changes recorded:

• 10 September 2026: £34,094
• 11 September 2026: £33,278
• 15 September 2026: £33,146
• 16 September 2026: £33,118
• 17 September 2026: £33,049
• 18 September 2026: £33,013
• 19 September 2026: £32,973
• 22 September 2026: £33,172
• 25 September 2026: £33,081
• 26 September 2026: £33,066
• 29 September 2026: £32,915
• 30 September 2026: £32,889
• 1 October 2026: £32,878
• 2 October 2026: £32,863
• 4 October 2026: £32,839
• 6 October 2026: £32,633
• 9 October 2026: £32,631
• 10 October 2026: £32,456
• 22 October 2026: £32,502
• 24 October 2026: £32,817
• 7 November 2026: £32,317

Mileage and MOT

Advertised mileage is about 2,200 miles lower than the median mileage of a 2023 BMW 4 Series on AskCar.

Similar cars

30 other 2023 BMW 4 Series M Sport 2.0 petrol automatic convertibles are for sale at UK dealers, from £25,999 to £33,990, as of 9 November 2026.

The 3 closest to this car in mileage:

• 2023 BMW 4 Series M Sport, 2.0 petrol convertible, black. Mileage: 25,641 miles. Price: £30,495, £1,822 less than this car. Dealer: Group 1 BMW Lincoln in Lincoln. AskCar page: https://askcar.co.uk/car/bmw-4-series-2023-f93f6a7a5368
• 2023 BMW 4 Series M Sport, 2.0 petrol convertible, blue. Mileage: 24,139 miles. Price: £32,400, £83 more than this car. Dealer: Berry Heathrow in Heathrow. AskCar page: https://askcar.co.uk/car/bmw-4-series-2023-13b439dfa6d6
• 2023 BMW 4 Series M Sport, 2.0 petrol convertible, grey. Mileage: 27,913 miles. Price: £29,741, £2,576 less than this car. Dealer: Group 1 Reading BMW in Reading. AskCar page: https://askcar.co.uk/car/bmw-4-series-2023-4440585a9f2d

• The nearest: 2023 BMW 4 Series M Sport, 2.0 petrol convertible, green, 97 miles from this car. Mileage: 47,990 miles. Price: £26,500, £5,817 less than this car. Dealer: Sytner Select Swindon in Swindon. AskCar page: https://askcar.co.uk/car/bmw-4-series-2023-60ae0778275c