2023 BMW 4 Series 2.0 420i M Sport
Price: £28,000. Fair price: £1,185 (4%) under the AskCar estimate of £29,185, our expected asking price for this car from its model, age, mileage and specification, drawing on 1,816 priced BMW 4 Series adverts on AskCar as of 8 November 2026.
AskCar lists 1,873 used BMW 4 Series from 1,080 UK dealerships, as of 8 November 2026.
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: 25,228 miles
- Fuel: Petrol
- Body: 2 doors, 4 seats
- Engine: 2.0 litres, 181 bhp
- Gearbox: Automatic
- Drive: Rear-wheel drive
- Colour: Green
- CO2: 145 g/km
- Emissions standard: Euro 6, ULEZ compliant
About this car
This 2023 BMW 4 Series M Sport is advertised with 25,228 miles, approximately 3,100 below the typical mileage for its age. Priced at £28,000, it is advertised £1,185 below the AskCar estimate of £29,185. The AskCar estimate uses UK dealer asking prices, including 1,816 BMW 4 Series adverts, and accounts for the car’s age, mileage and specification. It first appeared in our advert records 39 days ago. We checked its advertised mileage against the government's MOT record, and they match. The seller is Sytner Solihull BMW, based in Solihull. How to contact the dealer and its opening hours are on this AskCar page.
Stock data as of 8 November 2026.
Price
Fair price: £1,185 (4%) under the AskCar estimate of £29,185.
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 1,816 priced BMW 4 Series adverts across different ages and specifications, as of 8 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 8 November 2026.
Time on sale
This 2023 BMW 4 Series has been on sale for at least 39 days.
Price history
AskCar first saw this advert on 30 September 2026 at £27,500. Its asking price is now £28,000, £500 more.
Price changes recorded:
- 30 September 2026: £27,500
- 24 October 2026: £28,000
Mileage and MOT
MOT, from the government's MOT records (DVSA, the Driver and Vehicle Standards Agency), as of 8 November 2026: valid until 25 September 2027.
It has had one MOT, on 26 September 2026, and passed.
Advisories at the latest test: nearside rear tyre worn close to legal limit/worn on edge; offside rear tyre worn close to legal limit/worn on edge.
Mileage at that test: 25,178 miles, which matches the advertised 25,228 miles.
Advertised mileage is about 3,100 miles lower than the median mileage of a 2023 BMW 4 Series on AskCar.
Browse all BMW 4 Series cars for sale · 2023 BMW 4 Series price guide
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Photos
21 photos of this car are on its AskCar page.
As of 8 November 2026, AskCar lists 595,629 cars and vans from 12,891 UK dealerships, read daily from dealer websites: over 99% of UK dealer used car adverts. No dealer pays to be listed.