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: 10,460 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 10,460 miles, around 17,900 fewer miles than is typical for its age. Priced at £32,499, it is advertised £853 above the AskCar estimate of £31,646. 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 recorded this car for sale 1 day ago. Its advertised mileage matches the government's MOT record. The seller is Fords Of Winsford Car Supermarket, based in Winsford. 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: £853 (2%) over the AskCar estimate of £31,646.

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

AskCar first saw this 2023 BMW 4 Series advertised 1 day ago. About 4 in 10 of 2023 BMW 4 Series cars are gone from sale within a month of being advertised: 79 of the 180 first advertised between 11 July 2026 and 1 October 2026.

Price history

AskCar first saw this advert on 3 November 2026 at £32,499. 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 3 September 2027.

It has had one MOT, on 4 September 2026, and passed.

There were no advisories at the latest test.

Mileage at that test: 10,320 miles, which matches the advertised 10,460 miles.

Advertised mileage is about 17,900 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, £400 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, white. Mileage: 12,515 miles. Price: £32,699, £200 more than this car. Dealer: Williams Bolton Bmw in Bolton. AskCar page: https://askcar.co.uk/car/bmw-4-series-2023-9ff859311334
• 2023 BMW 4 Series M Sport, 2.0 petrol convertible, green. Mileage: 13,000 miles. Price: £33,990, £1,491 more than this car. Dealer: James Paul in Horsham. AskCar page: https://askcar.co.uk/car/bmw-4-series-2023-60820fa96357