2021 BMW 4 Series
2.0 420i M Sport [Tech/Pro Pack] Auto RWD Euro 6 2dr Step (181 bhp)
£27,000
Fair price: within 8% of the typical £25,628 for this model, age and mileage, drawing on 1,725 adverts of this make and model.
Overview
- Make
- BMW
- Model
- 4 Series
- Trim
- M SPORT
- Version
- 2.0 420i M Sport [Tech/Pro Pack] Auto RWD Euro 6 2dr Step (181 bhp)
- Mileage
- 40,658 miles
- Year
- 2021
- Fuel type
- Petrol
- Body type
- Convertible
- Engine
- 2.0 L
- Gearbox
- Automatic
- Power
- 181 bhp
- Seats
- 4
- CO2
- 154 g/km
- Colour
- Black
- Doors
- 2
- Driven wheels
- Rear Wheel Drive
- Engine badge
- 420i
- Emissions standard
- Euro 6
About this car
This 2021 BMW 4 Series M Sport has covered 40,658 miles. Our estimated market asking price is £25,628. This car is advertised at £27,000, which is £1,372 above that figure. Our estimate draws on 1,725 BMW 4 Series adverts across the UK, adjusting for age, mileage, trim, engine and other specifications. This car was first seen in our listings data 10 days ago. MOT records show an expiry date of 2 October 2027, and the latest recorded mileage is consistent with the advert. The seller is Sytner High Wycombe BMW, based in High Wycombe.
Stock data from 23 October 2026.
Price history
First seen on 15 October 2026, 10 days ago. Advert duration calculated on 25 October 2026.
| Date observed | Asking price |
|---|---|
| 15 October 2026 | £27,000 |
| 23 October 2026 | £27,000 |
Price and mileage comparison
Estimated market asking price: £25,628. The asking price is £1,372 above this estimate.
The estimate uses UK dealer asking prices, accounting for make, model, trim, version, age, mileage, fuel, gearbox, body type, driven wheels, engine size and power. It estimates an advertised price, not a confirmed sale price.
The pricing calculation includes 1,725 adverts of this make and model across different ages and specifications.
Advertised mileage is approximately 1,300 miles lower than typical for a 2021 BMW 4 Series.
The advertised mileage is consistent with the last MOT reading.
MOT
MOT valid until 2 October 2027. 40,518 miles at the last test.
84 other cars with the same year, trim, gearbox and fuel are for sale from £16,995 to £41,000.
| Asking price | Mileage |
|---|---|
| £16,995 | 96,000 miles |
| £17,490 | 56,431 miles |
| £18,990 | 97,313 miles |
| £19,900 | 77,199 miles |
| £20,950 | 70,584 miles |
Matching year, trim, gearbox and fuel does not mean matching mileage or every specification. Our estimate adjusts for these differences using the wider market data.
Browse all BMW 4 Series cars for sale · 2021 BMW 4 Series price guide
How to contact the dealer, its opening hours and the cheaper cars like this one are on this AskCar page.
Vehicle photos
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- 2021 BMW 4 Series photo 21
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