2018 BMW 4 Series 2.0 420i M Sport
Version: 2.0 420i M Sport Auto RWD Euro 6 (s/s) 2dr (181 bhp)
Price: £12,795. Fair price: £999 (7%) under the AskCar estimate of £13,794, our expected asking price for this car from its model, age, mileage and specification, drawing on 1,775 priced BMW 4 Series adverts on AskCar as of 31 October 2026.
AskCar lists 1,813 used BMW 4 Series from 1,042 UK dealerships, as of 31 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
- 73,274 miles
- Year
- 2018
- Fuel type
- Petrol
- Body type
- Coupe
- Engine
- 2.0 L
- Gearbox
- Automatic
- Power
- 181 bhp
- Seats
- 4
- CO2
- 134 g/km
- Colour
- Black
- Doors
- 2
- Driven wheels
- Rear Wheel Drive
- Engine badge
- 420i
- Emissions standard
- Euro 6
About this car
With 73,274 miles on the clock, this 2018 BMW 4 Series M Sport has done roughly 10,100 more miles than a typical 2018 BMW 4 Series. Its asking price of £12,795 is £999 below the AskCar estimate of £13,794. The AskCar estimate uses 1,775 UK dealer adverts for the BMW 4 Series, with adjustments for age, mileage, trim, engine and other specifications. We have tracked this advert today. The latest MOT record shows an expiry date of 29 June 2027, with the advertised mileage consistent with the recorded reading. You can find this car at Motoring WAY in Abertillery.
Stock data as of 31 October 2026.
Price history
AskCar first saw this advert on 31 October 2026.
| Date observed | Asking price |
|---|---|
| 31 October 2026 | £12,795 |
Price and mileage comparison
Fair price: £999 (7%) under the AskCar estimate of £13,794.
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 1,775 priced BMW 4 Series adverts across different ages and specifications, as of 31 October 2026.
Advertised mileage is about 10,100 miles higher than the median mileage of a 2018 BMW 4 Series on AskCar.
The advertised mileage is consistent with the last MOT reading.
MOT
MOT: valid until 29 June 2027. 71,072 miles at the last test.
Other matching cars
66 other 2018 BMW 4 Series M Sport automatic petrol cars are for sale at UK dealers from £10,299 to £28,750, as of 31 October 2026.
The 5 cheapest:
- 2018 BMW 4 Series. Price: £10,299. Mileage: 116,703 miles. Dealer: Honest Cars in Leicester. AskCar page: https://askcar.co.uk/car/bmw-4-series-2018-a8386b7f5b28
- 2018 BMW 4 Series. Price: £11,295. Mileage: 105,000 miles. Dealer: Eclipse Car Sales in Winchester. AskCar page: https://askcar.co.uk/car/bmw-4-series-2018-0c1d50e88c20
- 2018 BMW 4 Series. Price: £11,990. Mileage: 106,123 miles. Dealer: Strategic Vehicle Solutions in Boston. AskCar page: https://askcar.co.uk/car/bmw-4-series-2018-364433371cee
- 2018 BMW 4 Series. Price: £12,488. Mileage: 72,600 miles. Dealer: Car Capital in Southall. AskCar page: https://askcar.co.uk/car/bmw-4-series-2018-cd7c272be5c3
- 2018 BMW 4 Series. Price: £12,994. Mileage: 67,000 miles. Dealer: Strood Motor Centre in Rochester. AskCar page: https://askcar.co.uk/car/bmw-4-series-2018-c992284bf299
The 66 matching cars have covered 10,000 to 116,703 miles, compared with 73,274 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 · 2018 BMW 4 Series price guide
More like this
Photos
80 photos of this car are on its AskCar page.
How to contact the dealer and its opening hours are on this AskCar page.
As of 31 October 2026, AskCar lists 583,548 cars and vans from 12,716 UK dealerships, read daily from dealer websites: over 99% of UK dealer used car adverts. No dealer pays to be listed.