2023 BMW 4 Series 2.0 420i M Sport
Version: 2.0 420i M Sport Auto RWD Euro 6 (s/s) 2dr (181 bhp)
Price: £30,995. Fair price: £435 (1%) over the AskCar estimate of £30,560, our expected asking price for this car from its model, age, mileage and specification, drawing on 1,747 priced BMW 4 Series adverts on AskCar as of 30 October 2026.
AskCar lists 1,781 used BMW 4 Series from 1,037 UK dealerships, as of 30 October 2026.
Overview
- Make
- BMW
- Model
- 4 Series
- Trim
- M Sport
- Version
- 2.0 420i M Sport Auto RWD Euro 6 (s/s) 2dr (181 bhp)
- Mileage
- 21,567 miles
- Year
- 2023
- Fuel type
- Petrol
- Body type
- Convertible
- Engine
- 2.0 L
- Gearbox
- Automatic
- Power
- 181 bhp
- Seats
- 4
- CO2
- 160 g/km
- Colour
- White
- Doors
- 2
- Driven wheels
- Rear Wheel Drive
- Engine badge
- 420i
- Emissions standard
- Euro 6
About this car
This 2023 BMW 4 Series M Sport is advertised with 21,567 miles, approximately 6,500 below the typical mileage for its age. The dealer is asking £30,995, which is £435 above the AskCar estimate of £30,560. To work out the AskCar estimate, we analyse UK dealer adverts for 1,747 BMW 4 Series cars across different ages and specifications. We first recorded this car for sale today. MOT records show an expiry date of 30 July 2027, and the latest recorded mileage is consistent with the advert. The seller is Lloyd Blackpool BMW, based in Blackpool.
Stock data as of 30 October 2026.
Price history
AskCar first saw this advert on 30 October 2026.
| Date observed | Asking price |
|---|---|
| 30 October 2026 | £30,995 |
Price and mileage comparison
Fair price: £435 (1%) over the AskCar estimate of £30,560.
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 1,747 priced BMW 4 Series adverts across different ages and specifications, as of 30 October 2026.
Advertised mileage is about 6,500 miles lower than the median mileage of a 2023 BMW 4 Series on AskCar.
The advertised mileage is consistent with the last MOT reading.
MOT
MOT: valid until 30 July 2027. 19,714 miles at the last test.
Other matching cars
58 other 2023 BMW 4 Series M Sport automatic petrol cars are for sale at UK dealers from £24,980 to £35,880, as of 30 October 2026.
The 5 cheapest:
- 2023 BMW 4 Series. Price: £24,980. Mileage: 39,899 miles. Dealer: Stratstone BMW Milton Keynes in Milton Keynes. AskCar page: https://askcar.co.uk/car/bmw-4-series-2023-200000c3827f
- 2023 BMW 4 Series. Price: £24,999. Mileage: 45,203 miles. Dealer: Webuycarsformore.com in Newcastle upon Tyne. AskCar page: https://askcar.co.uk/car/bmw-4-series-2023-edd1c8d2e9c9
- 2023 BMW 4 Series. Price: £25,295. Mileage: 45,750 miles. Dealer: Evo Motor Group in Watford. AskCar page: https://askcar.co.uk/car/bmw-4-series-2023-545c255c9bea
- 2023 BMW 4 Series. Price: £25,890. Mileage: 51,584 miles. Dealer: Sytner Sheffield BMW in Sheffield. AskCar page: https://askcar.co.uk/car/bmw-4-series-2023-d8d0020c6888
- 2023 BMW 4 Series. Price: £25,990. Mileage: 33,100 miles. Dealer: S James Prestige in Essendine. AskCar page: https://askcar.co.uk/car/bmw-4-series-2023-4deef9a887a9
The 58 matching cars have covered 3,057 to 52,509 miles, compared with 21,567 miles for this car.
Matching year, trim, gearbox and fuel does not mean matching mileage or every specification. The AskCar estimate adjusts for these differences.
Browse all BMW 4 Series cars for sale · 2023 BMW 4 Series price guide
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Photos
1 photo of this car is on its AskCar page.
How to contact the dealer and its opening hours are on this AskCar page.
As of 30 October 2026, AskCar lists 580,490 cars and vans from 12,695 UK dealerships, read daily from dealer websites: over 99% of UK dealer used car adverts. No dealer pays to be listed.