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) 5dr Touring (322 bhp)
• Year: 2018
• Mileage: 40,000 miles
• Fuel: Petrol
• Body: Estate, 5 doors, 5 seats
• Engine: 3.0 litres, 322 bhp
• Gearbox: Automatic
• Drive: Rear-wheel drive
• Colour: Black
• CO2: 164 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

This 2018 BMW 3 Series M Sport Shadow Edition is advertised with 40,000 miles, approximately 32,600 below the typical mileage for its age. Its asking price of £28,450 is £2,570 above the AskCar estimate of £25,880. To work out the AskCar estimate, we analyse UK dealer adverts for 6,862 BMW 3 Series cars across different ages and specifications. We have tracked this advert today. Its advertised mileage matches the government's MOT record. You can find this car at AMS Specialist Cars in Cwmbran. 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

Above the going rate: £2,570 (9%) over the AskCar estimate of £25,880.

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

AskCar first saw this 2018 BMW 3 Series advertised today. About half of 2018 BMW 3 Series cars are gone from sale within a month of being advertised: 269 of the 532 first advertised between 10 July 2026 and 1 October 2026.

Price history

AskCar first saw this advert on 4 November 2026 at £28,450. 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 4 November 2026: valid until 14 September 2027.

It has had 6 MOTs. The latest, on 11 September 2026, passed.

There were no advisories at the latest test.

Mileage at that test: 39,273 miles, which matches the advertised 40,000 miles.

Advertised mileage is about 32,600 miles lower than the median mileage of a 2018 BMW 3 Series on AskCar.

Similar cars

3 other 2018 BMW 3 Series M Sport Shadow Edition 3.0 petrol automatic estates are for sale at UK dealers, from £24,990 to £29,995, as of 4 November 2026.

The 3 closest to this car in mileage:

• 2018 BMW 3 Series M Sport Shadow Edition, 3.0 petrol estate, black. Mileage: 45,000 miles. Price: £28,823, £373 more than this car. Dealer: Ron Hodgson Specialist Cars in Southport. AskCar page: https://askcar.co.uk/car/bmw-3-series-2018-05eb6bf53c4b
• 2018 BMW 3 Series M Sport Shadow Edition, 3.0 petrol estate, blue. Mileage: 33,000 miles. Price: £29,995, £1,545 more than this car. Dealer: S.P.V. Automotive in Windlesham. AskCar page: https://askcar.co.uk/car/bmw-3-series-2018-8f1cdbf37e18
• 2018 BMW 3 Series M Sport Shadow Edition, 3.0 petrol estate, black. Mileage: 61,000 miles. Price: £24,990, £3,460 less than this car. Dealer: Pinewood Motors in Abbots Langley. AskCar page: https://askcar.co.uk/car/bmw-3-series-2018-c1151c1280c9