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: 39,783 miles
• Fuel: Petrol
• Body: Convertible, 2 doors, 4 seats
• Engine: 2.0 litres, 181 bhp
• Gearbox: Automatic
• Drive: Rear-wheel drive
• Colour: Green
• CO2: 160 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

At 39,783 miles, this 2023 BMW 4 Series M Sport has covered about 11,500 more miles than other 2023 BMW 4 Series cars. Priced at £32,491, it is advertised £4,609 above the AskCar estimate of £27,882. The AskCar estimate uses 1,814 UK dealer adverts for the BMW 4 Series, with adjustments for age, mileage, trim, engine and other specifications. We first saw this car advertised 20 days ago. Its asking price has since fallen by £500. According to the government's MOT record, its advertised mileage is consistent with the latest test. The seller is Your Next Car, based in Nottingham. 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: £4,609 (16%) over the AskCar estimate of £27,882.

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 20 days.

Price history

AskCar first saw this advert on 15 October 2026 at £32,991. Its asking price is now £32,491, £500 less. The latest price cut was seen on 29 October 2026.

Price changes recorded:

• 15 October 2026: £32,991
• 29 October 2026: £32,491

Mileage and MOT

MOT, from the government's MOT records (DVSA, the Driver and Vehicle Standards Agency), as of 4 November 2026: valid until 9 September 2027.

It has had one MOT, on 10 September 2026, and passed.

There were no advisories at the latest test.

Mileage at that test: 39,724 miles, which matches the advertised 39,783 miles.

Advertised mileage is about 11,500 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, black. Mileage: 38,094 miles. Price: £30,975, £1,516 less than this car. Dealer: JMV Cars Ltd of Shorne in Gravesend. AskCar page: https://askcar.co.uk/car/bmw-4-series-2023-620f2d66ee04
• 2023 BMW 4 Series M Sport, 2.0 petrol convertible, grey. Mileage: 37,516 miles. Price: £27,899, £4,592 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, £2,491 less than this car. Dealer: Sytner Sheffield BMW in Sheffield. AskCar page: https://askcar.co.uk/car/bmw-4-series-2023-40fd3ac3c53e

• The nearest: 2023 BMW 4 Series M Sport, 2.0 petrol convertible, grey, 26 miles from this car. Mileage: 51,622 miles. Price: £29,250, £3,241 less than this car. Dealer: Sytner Leicester BMW in Leicester. AskCar page: https://askcar.co.uk/car/bmw-4-series-2023-7b10fb326995