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 (181 bhp)
• Year: 2023
• Mileage: 45,750 miles
• Fuel: Petrol
• Body: Coupe, 2 doors, 4 seats
• Engine: 2.0 litres, 181 bhp
• Gearbox: Automatic
• Drive: Rear-wheel drive
• Colour: Grey
• CO2: 145 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

This 2023 BMW 4 Series M Sport is advertised with 45,750 miles, approximately 17,300 above the typical mileage for its age. The dealer is asking £25,295, which is £1,273 below the AskCar estimate of £26,568. To work out the AskCar estimate, we analyse UK dealer adverts for 1,787 BMW 4 Series cars across different ages and specifications. We have tracked this advert for 3 days. Its advertised mileage matches the government's MOT record. It is advertised by Evo Motor Group in Radlett. How to contact the dealer and its opening hours are on this AskCar page.

Stock data as of 2 November 2026.

How we estimate prices and check cars

Price

Fair price: £1,273 (4%) under the AskCar estimate of £26,568.

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 1,787 priced BMW 4 Series adverts across different ages and specifications, as of 2 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 2 November 2026.

Time on sale

AskCar first saw this 2023 BMW 4 Series advertised 3 days ago. About half of 2023 BMW 4 Series cars are gone from sale within a month of being advertised: 76 of the 169 first advertised between 11 July 2026 and 29 September 2026.

Price history

AskCar first saw this advert on 30 October 2026 at £25,295. 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 2 November 2026: valid until 26 April 2027.

It has had one MOT, on 27 April 2026, and passed.

There were no advisories at the latest test.

Mileage at that test: 39,862 miles, which matches the advertised 45,750 miles.

Advertised mileage is about 17,300 miles higher than the median mileage of a 2023 BMW 4 Series on AskCar.

Similar cars

23 other 2023 BMW 4 Series M Sport 2.0 petrol automatic coupes are for sale at UK dealers, from £24,499 to £34,995, as of 2 November 2026.

The 3 closest to this car in mileage:

• 2023 BMW 4 Series M Sport, 2.0 petrol coupe, blue. Mileage: 45,203 miles. Price: £24,999, £296 less than 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, white. Mileage: 39,899 miles. Price: £24,980, £315 less than this car. Dealer: Stratstone BMW Milton Keynes in Milton Keynes. AskCar page: https://askcar.co.uk/car/bmw-4-series-2023-200000c3827f
• 2023 BMW 4 Series M Sport, 2.0 petrol coupe, grey. Mileage: 37,350 miles. Price: £24,499, £796 less than this car. Dealer: Anycolourcar.com in Barnsley. AskCar page: https://askcar.co.uk/car/bmw-4-series-2023-651c0b9302f9

• The nearest: 2023 BMW 4 Series M Sport, 2.0 petrol coupe, blue, 18 miles from this car. Mileage: 32,799 miles. Price: £29,000, £3,705 more than this car. Dealer: Sytner High Wycombe BMW in High Wycombe. AskCar page: https://askcar.co.uk/car/bmw-4-series-2023-4fb0a4ecc24d