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: 39,899 miles
• Fuel: Petrol
• Body: Coupe, 2 doors, 4 seats
• Engine: 2.0 litres, 181 bhp
• Gearbox: Automatic
• Drive: Rear-wheel drive
• Colour: White
• CO2: 144 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

At 39,899 miles, this 2023 BMW 4 Series M Sport has covered about 11,900 more miles than other 2023 BMW 4 Series cars. Priced at £24,980, it is advertised £2,490 below the AskCar estimate of £27,470. The AskCar estimate draws on 1,833 BMW 4 Series adverts across the UK, adjusting for age, mileage, trim, engine and other specifications. Since we first spotted the advert 97 days ago, the asking price has dropped by £2,910. According to the government's MOT record, its advertised mileage is consistent with the latest test. The seller is Stratstone BMW Milton Keynes, based in Milton Keynes. How to contact the dealer and its opening hours are on this AskCar page.

Stock data as of 5 November 2026.

How we estimate prices and check cars

Price

Good value: £2,490 (9%) under the AskCar estimate of £27,470.

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 1,833 priced BMW 4 Series adverts across different ages and specifications, as of 5 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 5 November 2026.

Time on sale

This 2023 BMW 4 Series has been on sale for at least 97 days.

Price history

AskCar first saw this advert on 31 July 2026 at £27,890. Its asking price is now £24,980, £2,910 less. The latest price cut was seen on 30 October 2026.

Price changes recorded:

• 31 July 2026: £27,890
• 11 August 2026: £27,695
• 8 September 2026: £27,495
• 22 September 2026: £26,995
• 9 October 2026: £25,490
• 15 October 2026: £24,995
• 27 October 2026: £24,990
• 30 October 2026: £24,980

Mileage and MOT

MOT, from the government's MOT records (DVSA, the Driver and Vehicle Standards Agency), as of 5 November 2026: valid until 30 May 2027.

It failed its MOT on 27 May 2026 (nearside headlamp aim too high; offside headlamp aim too high) and passed later the same day.

There were no advisories at the latest test.

Mileage at that test: 38,304 miles, which matches the advertised 39,899 miles.

Advertised mileage is about 11,900 miles higher than the median mileage of a 2023 BMW 4 Series on AskCar.

Similar cars

22 other 2023 BMW 4 Series M Sport 2.0 petrol automatic coupes are for sale at UK dealers, from £24,999 to £34,995, as of 5 November 2026.

The 3 closest to this car in mileage:

• 2023 BMW 4 Series M Sport, 2.0 petrol coupe, black. Mileage: 34,650 miles. Price: £28,990, £4,010 more than this car. Dealer: MINI UK at Stratstone Chesterfield in Chesterfield. AskCar page: https://askcar.co.uk/car/bmw-4-series-2023-f60f748819c9
• 2023 BMW 4 Series M Sport, 2.0 petrol coupe, blue. Mileage: 45,203 miles. Price: £24,999, the same price as this car. Dealer: Webuycarsformore.com in Newcastle upon Tyne. AskCar page: https://askcar.co.uk/car/bmw-4-series-2023-edd1c8d2e9c9
• 2023 BMW 4 Series M Sport, 2.0 petrol coupe, grey. Mileage: 45,750 miles. Price: £25,295, £315 more than this car. Dealer: Evo Motor Group in Watford. AskCar page: https://askcar.co.uk/car/bmw-4-series-2023-545c255c9bea