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 2dr Step (181 bhp)
• Year: 2023
• Mileage: 36,310 miles
• Fuel: Petrol
• Body: Convertible, 2 doors, 4 seats
• Engine: 2.0 litres, 181 bhp
• Gearbox: Automatic
• Drive: Rear-wheel drive
• Colour: Blue
• CO2: 154 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

This 2023 BMW 4 Series M Sport has covered 36,310 miles, around 8,200 more miles than is typical for its age. Priced at £27,987, it is advertised £184 above the AskCar estimate of £27,803. The AskCar estimate uses UK dealer asking prices, including 1,822 BMW 4 Series adverts, and accounts for the car’s age, mileage and specification. We first saw this car advertised 30 days ago. Its asking price has since fallen by £1,640. According to the government's MOT record, its advertised mileage is consistent with the latest test. The seller is Sandicliffe FordStore Leicester, based in Leicester. How to contact the dealer and its opening hours are on this AskCar page.

Stock data as of 12 November 2026.

How we estimate prices and check cars

Price

Fair price: £184 (under 1%) over the AskCar estimate of £27,803.

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 1,822 priced BMW 4 Series adverts across different ages and specifications, as of 12 November 2026.

A 2023 BMW 4 Series with the 2.0 petrol engine is typically advertised at £29,500: the median of the 82 for sale on AskCar, as of 12 November 2026.

Time on sale

This 2023 BMW 4 Series has been on sale for at least 30 days.

Price history

AskCar first saw this advert on 13 October 2026 at £29,627. Its asking price is now £27,987, £1,640 less. The latest price cut was seen on 12 November 2026.

Price changes recorded:

• 13 October 2026: £29,627
• 12 November 2026: £27,987

Mileage and MOT

MOT, from the government's MOT records (DVSA, the Driver and Vehicle Standards Agency), as of 12 November 2026: valid until 20 September 2027.

It has had 2 MOTs. The latest, on 21 September 2026, passed.

There were no advisories at the latest test.

Mileage at that test: 36,283 miles, which matches the advertised 36,310 miles.

Advertised mileage is about 8,200 miles higher 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 12 November 2026.

The 3 closest to this car in mileage:

• 2023 BMW 4 Series M Sport, 2.0 petrol convertible, black. Mileage: 37,287 miles. Price: £30,000, £2,013 more than this car. Dealer: Sytner Sheffield BMW in Sheffield. AskCar page: https://askcar.co.uk/car/bmw-4-series-2023-df2d098e66b6
• 2023 BMW 4 Series M Sport, 2.0 petrol convertible, black. Mileage: 38,094 miles. Price: £30,975, £2,988 more 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, white. Mileage: 33,951 miles. Price: £25,999, £1,988 less than this car. Dealer: Carsa Gloucester in Gloucester. AskCar page: https://askcar.co.uk/car/bmw-4-series-2023-64fd96402bd5

• The nearest: 2023 BMW 4 Series M Sport, 2.0 petrol convertible, grey, 3 miles from this car. Mileage: 51,622 miles. Price: £28,750, £763 more than this car. Dealer: Sytner Leicester BMW in Leicester. AskCar page: https://askcar.co.uk/car/bmw-4-series-2023-7b10fb326995