2020 Smart forfour 0.9 Prime

Price: £6,990. Good value: £791 (10%) under the AskCar estimate of £7,781, our expected asking price for this car from its model, age, mileage and specification, drawing on 244 priced Smart forfour adverts on AskCar as of 5 November 2026.

AskCar lists 257 used Smart forfour from 216 UK dealerships, as of 5 November 2026.

Overview

  • Make: Smart
  • Model: forfour
  • Trim: Prime
  • Version: 0.9 Prime Manual RWD Euro 6 5dr (88 bhp)
  • Year: 2020
  • Mileage: 27,068 miles
  • Fuel: Petrol
  • Body: Hatchback, 5 doors, 4 seats
  • Engine: 0.9 litres, 88 bhp
  • Gearbox: Manual
  • Drive: Rear-wheel drive
  • Colour: Grey
  • CO2: 99 g/km
  • Emissions standard: Euro 6, ULEZ compliant

About this car

This 2020 Smart forfour Prime is advertised with 27,068 miles, approximately 5,900 above the typical mileage for its age. The AskCar estimate for this car is £7,781. It is priced at £6,990, which is £791 below that estimate. The AskCar estimate uses UK dealer asking prices, including 244 Smart forfour adverts, and accounts for the car’s age, mileage and specification. This car was first seen in our listings data today. The government's MOT record matches its advertised mileage. It is advertised by Waylands Approved Petersfield in East Hampshire. How to contact the dealer and its opening hours are on this AskCar page.

Stock data as of 5 November 2026.

How we estimate prices and check cars

Price

Good value: £791 (10%) under the AskCar estimate of £7,781.

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 244 priced Smart forfour adverts across different ages and specifications, as of 5 November 2026.

Time on sale

AskCar first saw this 2020 Smart forfour advertised today.

Price history

AskCar first saw this advert on 5 November 2026 at £6,990. 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 5 November 2026: valid until 14 November 2027.

It failed its MOT on 28 October 2026 (emissions unable to be completed; rear exhaust has a major leak of exhaust gases) and passed later the same day.

There were no advisories at the latest test.

Mileage at that test: 26,908 miles, which matches the advertised 27,068 miles.

Advertised mileage is about 5,900 miles higher than the median mileage of a 2020 Smart forfour on AskCar.

Browse all Smart forfour cars for sale · 2020 Smart forfour price guide

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Photos

1 photo of this car is on its AskCar page.

As of 5 November 2026, AskCar lists 595,776 cars and vans from 12,945 UK dealerships, read daily from dealer websites: over 99% of UK dealer used car adverts. No dealer pays to be listed.