2018 BMW 4 Series 2.0 420i M Sport

Overview

• Make: BMW
• Model: 4 Series
• Trim: M Sport
• Version: 2.0 420i M Sport Auto 4WD Euro 6 (s/s) 2dr (181 bhp)
• Year: 2018
• Mileage: 34,993 miles
• Fuel: Petrol
• Body: Coupe, 2 doors, 4 seats
• Engine: 2.0 litres, 181 bhp
• Gearbox: Automatic
• Drive: Four-wheel drive
• Colour: Silver
• CO2: 144 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

At 34,993 miles, this 2018 BMW 4 Series M Sport has covered about 28,300 fewer miles than other 2018 BMW 4 Series cars. Its asking price of £16,440 is £1,275 below the AskCar estimate of £17,715. The AskCar estimate uses UK dealer asking prices, including 1,787 BMW 4 Series adverts, and accounts for the car’s age, mileage and specification. We first saw this car advertised 66 days ago. Its asking price has since fallen by £1,530. Our records show an MOT expiry date of 18 August 2026, which has passed. Ask the dealer for an update. Its advertised mileage matches the government's MOT record. It is advertised by Dace Motor Company - Trading Standards Approved in Stockport. How to contact the dealer and its opening hours are on this AskCar page.

Stock data as of 2 November 2026.

How we estimate prices and check cars

Price

Fair price: £1,275 (7%) under the AskCar estimate of £17,715.

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 1,787 priced BMW 4 Series adverts across different ages and specifications, as of 2 November 2026.

A 2018 BMW 4 Series with the 2.0 petrol engine is typically advertised at £14,800: the median of the 112 for sale on AskCar, as of 2 November 2026.

Time on sale

This 2018 BMW 4 Series has been on sale for at least 66 days.

Price history

AskCar first saw this advert on 28 August 2026 at £17,970. Its asking price is now £16,440, £1,530 less. The latest price cut was seen on 2 November 2026.

Price changes recorded:

• 28 August 2026: £17,970
• 4 September 2026: £17,440
• 5 October 2026: £17,290
• 16 October 2026: £16,940
• 2 November 2026: £16,440

Mileage and MOT

MOT, from the government's MOT records (DVSA, the Driver and Vehicle Standards Agency), as of 2 November 2026: the latest record we hold ran out on 18 August 2026; ask the dealer for the current MOT.

It has had 5 MOTs. The latest, on 19 August 2025, passed.

There were no advisories at the latest test.

Mileage at that test: 27,563 miles, which matches the advertised 34,993 miles.

Advertised mileage is about 28,300 miles lower than the median mileage of a 2018 BMW 4 Series on AskCar.

Similar cars

30 other 2018 BMW 4 Series M Sport 2.0 petrol automatic coupes are for sale at UK dealers, from £9,599 to £18,999, as of 2 November 2026.

The 3 closest to this car in mileage:

• 2018 BMW 4 Series M Sport, 2.0 petrol coupe, black. Mileage: 38,000 miles. Price: £14,495, £1,945 less than this car. Dealer: Royal Platinum Cars in Glenrothes. AskCar page: https://askcar.co.uk/car/bmw-4-series-2018-ebad72e5aadf
• 2018 BMW 4 Series M Sport, 2.0 petrol coupe, black. Mileage: 38,236 miles. Price: £14,180, £2,260 less than this car. Dealer: Evans Halshaw Vauxhall Bedford in Bedford. AskCar page: https://askcar.co.uk/car/bmw-4-series-2018-57d3366d4dba
• 2018 BMW 4 Series M Sport, 2.0 petrol coupe, blue. Mileage: 31,500 miles. Price: £17,499, £1,059 more than this car. Dealer: DB Prestige in Warrington. AskCar page: https://askcar.co.uk/car/bmw-4-series-2018-5774fff9c616

• The nearest: 2018 BMW 4 Series M Sport, 2.0 petrol coupe, blue, 9 miles from this car. Mileage: 57,500 miles. Price: £16,499, £59 more than this car. Dealer: Trust'd Motors in Manchester. AskCar page: https://askcar.co.uk/car/bmw-4-series-2018-b341cb4f77a6