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: 13,788 miles
• Fuel: Petrol
• Body: Coupe, 2 doors, 4 seats
• Engine: 2.0 litres, 181 bhp
• Gearbox: Automatic
• Drive: Rear-wheel drive
• Colour: White
• CO2: 151 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

This 2023 BMW 4 Series M Sport is advertised with 13,788 miles, approximately 14,500 below the typical mileage for its age. Its asking price of £29,990 is £1,675 below the AskCar estimate of £31,665. The AskCar estimate draws on 1,825 BMW 4 Series adverts across the UK, adjusting for age, mileage, trim, engine and other specifications. It first appeared in our advert records 3 days ago. We checked its advertised mileage against the government's MOT record, and they match. The seller is Group 1 Southend BMW, based in Leigh-on-SEA. How to contact the dealer and its opening hours are on this AskCar page.

Stock data as of 7 November 2026.

How we estimate prices and check cars

Price

Fair price: £1,675 (5%) under the AskCar estimate of £31,665.

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 1,825 priced BMW 4 Series adverts across different ages and specifications, as of 7 November 2026.

A 2023 BMW 4 Series with the 2.0 petrol engine is typically advertised at £29,600: the median of the 86 for sale on AskCar, as of 7 November 2026.

Time on sale

AskCar first saw this 2023 BMW 4 Series advertised 3 days ago. About 4 in 10 of 2023 BMW 4 Series cars are gone from sale within a month of being advertised: 82 of the 186 first advertised between 11 July 2026 and 4 October 2026.

Price history

AskCar first saw this advert on 4 November 2026 at £29,990. 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 7 November 2026: valid until 23 March 2027.

It has had one MOT, on 19 March 2026, and passed.

There were no advisories at the latest test.

Mileage at that test: 11,500 miles, which matches the advertised 13,788 miles.

Advertised mileage is about 14,500 miles lower than the median mileage of a 2023 BMW 4 Series on AskCar.

Similar cars

21 other 2023 BMW 4 Series M Sport 2.0 petrol automatic coupes are for sale at UK dealers, from £24,980 to £34,995, as of 7 November 2026.

The 3 closest to this car in mileage:

• 2023 BMW 4 Series M Sport, 2.0 petrol coupe, green. Mileage: 13,617 miles. Price: £33,290, £3,300 more than this car. Dealer: Dick Lovett BMW Bristol in Bristol. AskCar page: https://askcar.co.uk/car/bmw-4-series-2023-676f6ebdb7bc
• 2023 BMW 4 Series M Sport, 2.0 petrol coupe, grey. Mileage: 15,156 miles. Price: £30,695, £705 more than this car. Dealer: Park's Motor Group Douglas Park BMW Glasgow in Glasgow. AskCar page: https://askcar.co.uk/car/bmw-4-series-2023-b854bdd1cf5c
• 2023 BMW 4 Series M Sport, 2.0 petrol coupe, blue. Mileage: 11,902 miles. Price: £30,799, £809 more than this car. Dealer: Fords of Winsford Manchester in Manchester. AskCar page: https://askcar.co.uk/car/bmw-4-series-2023-ba622e2824cb

• The nearest: 2023 BMW 4 Series M Sport, 2.0 petrol coupe, black, 24 miles from this car. Mileage: 26,700 miles. Price: £29,990, the same price as this car. Dealer: Prestige Cars Of Essex in Harlow. AskCar page: https://askcar.co.uk/car/bmw-4-series-2023-76e75ca88839