2023 BMW 4 Series 2.0 420i M Sport
Version: 2.0 420i M Sport [Pro Pack] Auto RWD Euro 6 2dr Step (181 bhp)
Price: £29,500. Fair price: £2,024 (6%) under the AskCar estimate of £31,524, 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 [Pro Pack] Auto RWD Euro 6 2dr Step (181 bhp)
- Mileage
- 15,000 miles
- Year
- 2023
- Fuel type
- Petrol
- Engine
- 2.0 L
- Gearbox
- Automatic
- Power
- 181 bhp
- Seats
- 4
- CO2
- 151 g/km
- Colour
- Grey
- Doors
- 2
- Driven wheels
- Rear Wheel Drive
- Engine badge
- 420i
- Emissions standard
- Euro 6
About this car
The advertised mileage for this 2023 BMW 4 Series M Sport is 15,000 miles. Its asking price of £29,500 is £2,024 below the AskCar estimate of £31,524. To work out the AskCar estimate, we analyse UK dealer adverts for 1,747 BMW 4 Series cars across different ages and specifications. It first appeared in our advert records today. The advertised mileage is lower than the latest MOT reading of 22,591 miles. Ask the dealer to explain. Its recorded MOT is valid until 2 March 2027. The seller is Sytner Solihull BMW, based in Solihull.
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 | £29,500 |
Price and mileage comparison
Fair price: £2,024 (6%) under the AskCar estimate of £31,524.
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 13,100 miles lower than the median mileage of a 2023 BMW 4 Series on AskCar.
Mileage concern: the advertised mileage is below the last MOT reading; ask the dealer to explain.
MOT
MOT: valid until 2 March 2027. 22,591 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 15,000 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
More like this
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.