2018 BMW 4 Series 3.0 440i M Sport

Overview

• Make: BMW
• Model: 4 Series
• Trim: M Sport
• Version: 3.0 440i GPF M Sport Auto RWD Euro 6 (s/s) 2dr (322 bhp)
• Year: 2018
• Mileage: 52,000 miles
• Fuel: Petrol
• Body: Convertible, 2 doors, 4 seats
• Engine: 3.0 litres, 322 bhp
• Gearbox: Automatic
• Drive: Rear-wheel drive
• Colour: Blue
• CO2: 176 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

With 52,000 miles on the clock, this 2018 BMW 4 Series M Sport has done roughly 11,000 fewer miles than a typical 2018 BMW 4 Series. Priced at £20,995, it is advertised £1,207 below the AskCar estimate of £22,202. The AskCar estimate draws on 1,825 BMW 4 Series adverts across the UK, adjusting for age, mileage, trim, engine and other specifications. We first recorded this car for sale today. Our latest MOT record expired on 30 October 2026. Check the current position with the dealer. The government's MOT record matches its advertised mileage. It is for sale at Andrew Toms Car Sales in St Austell. How to contact the dealer and its opening hours are on this AskCar page.

Stock data as of 7 November 2026.

How we estimate prices and check cars

Price

Fair price: £1,207 (5%) under the AskCar estimate of £22,202.

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 1,825 priced BMW 4 Series adverts across different ages and specifications, as of 7 November 2026.

A 2018 BMW 4 Series with the 3.0 petrol engine is typically advertised at £17,500: the median of the 83 for sale on AskCar, as of 7 November 2026.

Time on sale

AskCar first saw this 2018 BMW 4 Series advertised today. About 4 in 10 of 2018 BMW 4 Series cars are gone from sale within a month of being advertised: 134 of the 300 first advertised between 11 July 2026 and 4 October 2026.

Price history

AskCar first saw this advert on 7 November 2026 at £20,995. Its asking price has not changed.

Mileage and MOT

MOT, from the government's MOT records (DVSA, the Driver and Vehicle Standards Agency), as of 7 November 2026: the latest record we hold ran out on 30 October 2026; ask the dealer for the current MOT.

It has had 5 MOTs. The latest, on 31 October 2025, passed.

There were no advisories at the latest test.

Mileage at that test: 45,890 miles, which matches the advertised 52,000 miles.

Advertised mileage is about 11,000 miles lower than the median mileage of a 2018 BMW 4 Series on AskCar.

Similar cars

6 other 2018 BMW 4 Series M Sport 3.0 petrol automatic convertibles are for sale at UK dealers, from £19,995 to £28,750, as of 7 November 2026.

The 3 closest to this car in mileage:

• 2018 BMW 4 Series M Sport, 3.0 petrol convertible, black. Mileage: 65,269 miles. Price: £20,000, £995 less than this car. Dealer: Perrys Milton Keynes Peugeot & Citroen in Milton Keynes. AskCar page: https://askcar.co.uk/car/bmw-4-series-2018-1be2d3cac3fd
• 2018 BMW 4 Series M Sport, 3.0 petrol convertible, blue. Mileage: 30,000 miles. Price: £26,995, £6,000 more than this car. Dealer: HR Sports and Classics in Warrington. AskCar page: https://askcar.co.uk/car/bmw-4-series-2018-0c73f9bfb8c3
• 2018 BMW 4 Series M Sport, 3.0 petrol convertible, black. Mileage: 74,120 miles. Price: £19,995, £1,000 less than this car. Dealer: Fida Motors in Wickford. AskCar page: https://askcar.co.uk/car/bmw-4-series-2018-afae84165a57

• The nearest: 2018 BMW 4 Series M Sport, 3.0 petrol convertible, blue, 199 miles from this car. Mileage: 29,224 miles. Price: £25,000, £4,005 more than this car. Dealer: Sytner Sunningdale MINI in Bracknell. AskCar page: https://askcar.co.uk/car/bmw-4-series-2018-5f2bad03c3a3