2018 BMW 3 Series 3.0 340i M Sport Shadow Edition

Overview

• Make: BMW
• Model: 3 Series
• Trim: M Sport Shadow Edition
• Version: 3.0 340i M Sport Shadow Edition Auto RWD Euro 6 (s/s) 4dr (322 bhp)
• Year: 2018
• Mileage: 29,475 miles
• Fuel: Petrol
• Body: Saloon, 4 doors, 5 seats
• Engine: 3.0 litres, 322 bhp
• Gearbox: Automatic
• Drive: Rear-wheel drive
• Colour: Grey
• CO2: 159 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

This 2018 BMW 3 Series M Sport Shadow Edition has covered 29,475 miles, around 43,100 fewer miles than is typical for its age. Its asking price of £24,850 is £276 below the AskCar estimate of £25,126. The AskCar estimate draws on 6,862 BMW 3 Series adverts across the UK, adjusting for age, mileage, trim, engine and other specifications. We first saw this car advertised 40 days ago. Its asking price has since fallen by £1,050. The latest recorded MOT expiry date is 26 October 2026, which has passed. Confirm its status with the dealer. According to the government's MOT record, its advertised mileage is consistent with the latest test. It is for sale at Car Planet Barnet in New Southgate. How to contact the dealer and its opening hours are on this AskCar page.

Stock data as of 4 November 2026.

How we estimate prices and check cars

Price

Fair price: £276 (1%) under the AskCar estimate of £25,126.

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 6,862 priced BMW 3 Series adverts across different ages and specifications, as of 4 November 2026.

A 2018 BMW 3 Series with the 3.0 petrol engine is typically advertised at £18,000: the median of the 68 for sale on AskCar, as of 4 November 2026.

Time on sale

This 2018 BMW 3 Series has been on sale for at least 40 days.

Price history

AskCar first saw this advert on 25 September 2026 at £25,900. Its asking price is now £24,850, £1,050 less. The latest price cut was seen on 30 October 2026.

Price changes recorded:

• 25 September 2026: £25,900
• 11 October 2026: £25,600
• 17 October 2026: £25,300
• 23 October 2026: £25,150
• 30 October 2026: £24,850

Mileage and MOT

MOT, from the government's MOT records (DVSA, the Driver and Vehicle Standards Agency), as of 4 November 2026: the latest record we hold ran out on 26 October 2026; ask the dealer for the current MOT.

It has had 6 MOTs. The latest, on 26 September 2026, passed.

Advisories at the latest test: nearside rear nail in tyre.

Mileage at that test: 29,550 miles, which matches the advertised 29,475 miles.

Advertised mileage is about 43,100 miles lower than the median mileage of a 2018 BMW 3 Series on AskCar.

Similar cars

4 other 2018 BMW 3 Series M Sport Shadow Edition 3.0 petrol automatic saloons are for sale at UK dealers, from £20,995 to £26,195, as of 4 November 2026.

The 3 closest to this car in mileage:

• 2018 BMW 3 Series M Sport Shadow Edition, 3.0 petrol saloon, silver. Mileage: 35,000 miles. Price: £26,195, £1,345 more than this car. Dealer: Vision Car Sales in Swindon. AskCar page: https://askcar.co.uk/car/bmw-3-series-2018-ea9b9dd961d4
• 2018 BMW 3 Series M Sport Shadow Edition, 3.0 petrol saloon, silver. Mileage: 44,000 miles. Price: £22,000, £2,850 less than this car. Dealer: HKO Vehicles in Macclesfield. AskCar page: https://askcar.co.uk/car/bmw-3-series-2018-023c709189b0
• 2018 BMW 3 Series M Sport Shadow Edition, 3.0 petrol saloon, black. Mileage: 50,000 miles. Price: £24,995, £145 more than this car. Dealer: HR Sports and Classics in Warrington. AskCar page: https://askcar.co.uk/car/bmw-3-series-2018-48ea217ebee9