2018 BMW 3 Series 2.0 320i M Sport

Overview

• Make: BMW
• Model: 3 Series
• Trim: M Sport
• Version: 2.0 320i M Sport Auto RWD Euro 6 (s/s) 4dr (181 bhp)
• Year: 2018
• Mileage: 20,700 miles
• Fuel: Petrol
• Body: Saloon, 4 doors, 5 seats
• Engine: 2.0 litres, 181 bhp
• Gearbox: Automatic
• Drive: Rear-wheel drive
• Colour: Orange
• CO2: 134 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

This 2018 BMW 3 Series M Sport has covered 20,700 miles, around 51,900 fewer miles than is typical for its age. The AskCar estimate for this car is £16,984. It is priced at £18,695, which is £1,711 above that estimate. The AskCar estimate uses 6,862 UK dealer adverts for the BMW 3 Series, with adjustments for age, mileage, trim, engine and other specifications. This car was first seen in our listings data 4 days ago. Its advertised mileage matches the government's MOT record. The seller is Sytner Stevenage BMW, based in Stevenage. 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: £1,711 (10%) over the AskCar estimate of £16,984.

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 2.0 petrol engine is typically advertised at £12,500: the median of the 286 for sale on AskCar, as of 4 November 2026.

Time on sale

AskCar first saw this 2018 BMW 3 Series advertised 4 days ago. 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 31 October 2026 at £18,695. 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 1 November 2027.

It has had 7 MOTs. The latest, on 12 October 2026, passed.

There were no advisories at the latest test.

Mileage at that test: 20,618 miles, which matches the advertised 20,700 miles.

Advertised mileage is about 51,900 miles lower than the median mileage of a 2018 BMW 3 Series on AskCar.

Similar cars

8 other 2018 BMW 3 Series M Sport 2.0 petrol automatic saloons are for sale at UK dealers, from £10,378 to £16,395, as of 4 November 2026.

The 3 closest to this car in mileage:

• 2018 BMW 3 Series M Sport, 2.0 petrol saloon, silver. Mileage: 24,604 miles. Price: £16,395, £2,300 less than this car. Dealer: Group 1 Reading BMW in Reading. AskCar page: https://askcar.co.uk/car/bmw-3-series-2018-c4abe98dd805
• 2018 BMW 3 Series M Sport, 2.0 petrol saloon, grey. Mileage: 47,650 miles. Price: £14,250, £4,445 less than this car. Dealer: Motorright in Leicester. AskCar page: https://askcar.co.uk/car/bmw-3-series-2018-f0386768626f
• 2018 BMW 3 Series M Sport, 2.0 petrol saloon, grey. Mileage: 67,000 miles. Price: £12,995, £5,700 less than this car. Dealer: David Hayton Autostore Penrith in Penrith. AskCar page: https://askcar.co.uk/car/bmw-3-series-2018-8ae086d75f96

• The nearest: 2018 BMW 3 Series M Sport, 2.0 petrol saloon, grey, 10 miles from this car. Price: £14,995, £3,700 less than this car. Dealer: Go Specialists Car Sales in Hatfield. AskCar page: https://askcar.co.uk/car/bmw-3-series-2018-4b3ad8957ce5