2020 BMW 4 Series
2.0 420i M Sport Auto RWD Euro 6 (s/s) 2dr (181 bhp)
£18,000
Good value: £2,422 under the typical £20,422 for this model, age and mileage, drawing on 1,730 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 (s/s) 2dr (181 bhp)
- Mileage
- 40,457 miles
- Year
- 2020
- Fuel type
- Petrol
- Body type
- Coupe
- Engine
- 2.0 L
- Gearbox
- Automatic
- Power
- 181 bhp
- Seats
- 4
- CO2
- 151 g/km
- Colour
- Black
- Doors
- 2
- Driven wheels
- Rear Wheel Drive
- Engine badge
- 420i
- Emissions standard
- Euro 6
About this car
This 2020 BMW 4 Series M Sport is advertised with 40,457 miles, approximately 2,300 below the typical mileage for its age. The dealer is asking £18,000, which is £2,422 below our market estimate of £20,422. We use UK dealer asking prices, including 1,730 BMW 4 Series listings, and account for the car’s age, mileage and specification. Since we first spotted the advert 75 days ago, the asking price has dropped by £1,890. The time on sale and price change could be useful context when negotiating. MOT records show an expiry date of 26 July 2027, and the latest recorded mileage is consistent with the advert. The seller is Sytner Leicester BMW, based in Leicester.
Stock data from 28 October 2026.
Price history
First seen on 15 August 2026, 75 days ago. Advert duration calculated on 29 October 2026. Net asking-price reduction: £1,890 from the first recorded £19,890. 6 price reductions recorded, the latest observed on 24 October 2026.
| Date observed | Asking price |
|---|---|
| 15 August 2026 | £19,890 |
| 22 August 2026 | £19,850 |
| 11 September 2026 | £19,500 |
| 19 September 2026 | £19,250 |
| 25 September 2026 | £18,950 |
| 15 October 2026 | £18,450 |
| 24 October 2026 | £18,000 |
| 28 October 2026 | £18,000 |
Price and mileage comparison
Estimated market asking price: £20,422. The asking price is £2,422 below 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 1,730 adverts of this make and model across different ages and specifications.
Advertised mileage is approximately 2,300 miles lower than typical for a 2020 BMW 4 Series.
The advertised mileage is consistent with the last MOT reading.
MOT
MOT valid until 26 July 2027. 40,207 miles at the last test.
24 other cars with the same year, trim, gearbox and fuel are for sale from £15,290 to £53,950.
| Asking price | Mileage |
|---|---|
| £15,290 | 45,681 miles |
| £16,350 | 19,927 miles |
| £17,495 | 44,376 miles |
| £17,750 | 48,681 miles |
| £17,998 | 36,373 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 · 2020 BMW 4 Series price guide
More like this
How to contact the dealer, its opening hours and the cheaper cars like this one are on this AskCar page.
Vehicle photos
- 2020 BMW 4 Series photo 1
- 2020 BMW 4 Series photo 2
- 2020 BMW 4 Series photo 3
- 2020 BMW 4 Series photo 4
AskCar lists 584,857 cars from 12,986 UK dealer locations, read and updated daily from dealer websites. More than any other UK site. No dealer pays to be listed.