2021 BMW 4 Series
2.0 420i M Sport Auto RWD Euro 6 2dr Step (181 bhp)
£21,000
Fair price: within 8% of the typical £20,102 for this model, age and mileage, drawing on 1,757 adverts of this make and model.
Overview
- Make
- BMW
- Model
- 4 Series
- Trim
- M SPORT
- Version
- 2.0 420i M Sport Auto RWD Euro 6 2dr Step (181 bhp)
- Mileage
- 68,000 miles
- Year
- 2021
- Fuel type
- Petrol
- Engine
- 2.0 L
- Gearbox
- Automatic
- Power
- 181 bhp
- Seats
- 4
- 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 68,000 miles, around 25,700 more than typical for its age. Our estimated market asking price is £20,102. This car is advertised at £21,000, which is £898 above that figure. We use UK dealer asking prices, including 1,757 BMW 4 Series listings, and account for the car’s age, mileage and specification. This car was first seen in our listings data 1 day ago.
Stock data from 27 October 2026.
Price history
First seen on 27 October 2026, 1 days ago. Advert duration calculated on 28 October 2026.
| Date observed | Asking price |
|---|---|
| 27 October 2026 | £21,000 |
Price and mileage comparison
Estimated market asking price: £20,102. The asking price is £898 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 1,757 adverts of this make and model across different ages and specifications.
Advertised mileage is approximately 25,700 miles higher than typical for a 2021 BMW 4 Series.
80 other cars with the same year, trim, gearbox and fuel are for sale from £16,995 to £33,950.
| Asking price | Mileage |
|---|---|
| £16,995 | 96,000 miles |
| £17,490 | 56,431 miles |
| £18,990 | 97,313 miles |
| £19,900 | 77,199 miles |
| £20,650 | 69,441 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
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