2018 Smart forfour 0.9 PRIME PREMIUM PLUS

Price: £6,299. Fair price: £435 (6%) under the AskCar estimate of £6,734, our expected asking price for this car from its model, age, mileage and specification, drawing on 246 priced Smart forfour adverts on AskCar as of 2 November 2026.

AskCar lists 259 used Smart forfour from 217 UK dealerships, as of 2 November 2026.

Overview

  • Make: Smart
  • Model: forfour
  • Trim: Prime Premium Plus
  • Version: 0.9 T Prime Premium Plus Manual RWD Euro 6 (s/s) 5dr (89 bhp)
  • Year: 2018
  • Mileage: 43,670 miles
  • Fuel: Petrol
  • Body: Hatchback, 5 doors, 4 seats
  • Engine: 0.9 litres, 89 bhp
  • Gearbox: Manual
  • Drive: Rear-wheel drive
  • Colour: Black
  • CO2: 99 g/km
  • Emissions standard: Euro 6, ULEZ compliant

About this car

This 2018 Smart forfour Prime Premium Plus has covered 43,670 miles, around 6,100 more miles than is typical for its age. Its asking price of £6,299 is £435 below the AskCar estimate of £6,734. The AskCar estimate uses 246 UK dealer adverts for the Smart forfour, with adjustments for age, mileage, trim, engine and other specifications. We first saw this car advertised 33 days ago. Its asking price has since fallen by £200. We checked its advertised mileage against the government's MOT record, and they match. It is for sale at Red Lion Motors in Chelmsford. How to contact the dealer and its opening hours are on this AskCar page.

Stock data as of 2 November 2026.

How we estimate prices and check cars

Price

Fair price: £435 (6%) under the AskCar estimate of £6,734.

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 246 priced Smart forfour adverts across different ages and specifications, as of 2 November 2026.

A 2018 Smart forfour with the 0.9 petrol engine is typically advertised at £8,800: the median of the 20 for sale on AskCar, as of 2 November 2026.

Time on sale

This 2018 Smart forfour has been on sale for at least 33 days.

Price history

AskCar first saw this advert on 30 September 2026 at £6,499. Its asking price is now £6,299, £200 less. The latest price cut was seen on 27 October 2026.

Price changes recorded:

  • 30 September 2026: £6,499
  • 27 October 2026: £6,299

Mileage and MOT

MOT, from the government's MOT records (DVSA, the Driver and Vehicle Standards Agency), as of 2 November 2026: valid until 20 September 2027.

It has had 8 MOTs. The latest, on 21 September 2026, passed.

There were no advisories at the latest test.

Mileage at that test: 43,643 miles, which matches the advertised 43,670 miles.

Advertised mileage is about 6,100 miles higher than the median mileage of a 2018 Smart forfour on AskCar.

Browse all Smart forfour cars for sale · 2018 Smart forfour price guide

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Photos

85 photos of this car are on its AskCar page.

As of 2 November 2026, AskCar lists 586,270 cars and vans from 12,920 UK dealerships, read daily from dealer websites: over 99% of UK dealer used car adverts. No dealer pays to be listed.