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: 7,216 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 is advertised with 7,216 miles, approximately 21,100 below the typical mileage for its age. The AskCar estimate for this car is £32,518. It is priced at £32,498, which is £20 below that estimate. The AskCar estimate draws on 1,814 BMW 4 Series adverts across the UK, adjusting for age, mileage, trim, engine and other specifications. This car was first seen in our listings data 29 days ago. We checked its advertised mileage against the government's MOT record, and they match. The seller is Arnold Clark Dumfries Bmw Mini Geely, based in Dumfries. 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

Fair price: £20 (under 1%) under the AskCar estimate of £32,518.

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 29 days.

Price history

AskCar first saw this advert on 6 October 2026 at £32,498. Its asking price has not changed.

Mileage and MOT

MOT, from the government's MOT records (DVSA, the Driver and Vehicle Standards Agency), as of 4 November 2026: valid until 30 September 2027.

It has had 2 MOTs. The latest, on 1 October 2026, passed.

There were no advisories at the latest test.

Mileage at that test: 7,221 miles, which matches the advertised 7,216 miles.

Advertised mileage is about 21,100 miles lower 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, white. Mileage: 8,567 miles. Price: £32,899, £401 more than this car. Dealer: Motorpoint Leeds in Leeds. AskCar page: https://askcar.co.uk/car/bmw-4-series-2023-a5a4d97bf22b
• 2023 BMW 4 Series M Sport, 2.0 petrol convertible, blue. Mileage: 10,460 miles. Price: £32,499, the same price as this car. Dealer: Fords Of Winsford Car Supermarket in Winsford. AskCar page: https://askcar.co.uk/car/bmw-4-series-2023-2374fa29cfc5
• 2023 BMW 4 Series M Sport, 2.0 petrol convertible, white. Mileage: 12,515 miles. Price: £32,699, £201 more than this car. Dealer: Williams Bolton Bmw in Bolton. AskCar page: https://askcar.co.uk/car/bmw-4-series-2023-9ff859311334

• The nearest: 2023 BMW 4 Series M Sport, 2.0 petrol convertible, grey, 64 miles from this car. Mileage: 37,516 miles. Price: £27,899, £4,599 less than this car. Dealer: Motorpoint Edinburgh in Edinburgh. AskCar page: https://askcar.co.uk/car/bmw-4-series-2023-dc51962a578a