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 4dr (321 bhp)
• Year: 2018
• Mileage: 70,000 miles
• Fuel: Petrol
• Body: Saloon, 4 doors, 5 seats
• Engine: 3.0 litres, 321 bhp
• Gearbox: Automatic
• Drive: Rear-wheel drive
• Colour: Grey
• CO2: 159 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

With 70,000 miles on the clock, this 2018 BMW 3 Series M Sport Shadow Edition has done roughly 2,600 fewer miles than a typical 2018 BMW 3 Series. The dealer is asking £20,995, which is £1,906 above the AskCar estimate of £19,089. To work out the AskCar estimate, we analyse UK dealer adverts for 6,862 BMW 3 Series cars across different ages and specifications. We first recorded this car for sale 10 days ago. According to the government's MOT record, its advertised mileage is consistent with the latest test. It is advertised by Riverlea Car Sales in Christchurch. 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: £1,906 (9%) over the AskCar estimate of £19,089.

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 10 days.

Price history

AskCar first saw this advert on 25 October 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 4 November 2026: valid until 16 August 2027.

It has had 6 MOTs. The latest, on 17 August 2026, passed.

There were no advisories at the latest test.

Mileage at that test: 69,186 miles, which matches the advertised 70,000 miles.

Advertised mileage is about 2,600 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 £22,000 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, black. Mileage: 50,000 miles. Price: £24,995, £4,000 more than this car. Dealer: HR Sports and Classics in Warrington. AskCar page: https://askcar.co.uk/car/bmw-3-series-2018-48ea217ebee9
• 2018 BMW 3 Series M Sport Shadow Edition, 3.0 petrol saloon, silver. Mileage: 44,000 miles. Price: £22,000, £1,005 more 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, silver. Mileage: 35,000 miles. Price: £26,195, £5,200 more than this car. Dealer: Vision Car Sales in Swindon. AskCar page: https://askcar.co.uk/car/bmw-3-series-2018-ea9b9dd961d4