2021 Smart forfour
Price: £8,000. Good value: £1,504 (15%) under the AskCar estimate of £9,504, 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
- Version: Auto RWD 5dr (81 bhp)
- Year: 2021
- Mileage: 9,263 miles
- Fuel: Electric
- Body: Hatchback, 5 doors, 4 seats
- Engine: 81 bhp
- Gearbox: Automatic
- Drive: Rear-wheel drive
- Colour: Black
- CO2: 0 g/km
- Emissions standard: Euro 6, ULEZ compliant
About this car
This 2021 Smart forfour is advertised with 9,263 miles, approximately 10,100 below the typical mileage for its age. The AskCar estimate for this car is £9,504. It is priced at £8,000, which is £1,504 below that estimate. The AskCar estimate draws on 246 Smart forfour adverts across the UK, adjusting for age, mileage, trim, engine and other specifications. We have tracked this advert for 27 days. Its advertised mileage matches the government's MOT record. It is for sale at Carlingo in Harrogate. How to contact the dealer and its opening hours are on this AskCar page.
Stock data as of 2 November 2026.
Price
Good value: £1,504 (15%) under the AskCar estimate of £9,504.
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.
Time on sale
This 2021 Smart forfour has been on sale for at least 27 days.
Price history
AskCar first saw this advert on 6 October 2026 at £8,000. 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 2 November 2026: valid until 4 November 2026.
It has had 4 MOTs. The latest, on 6 October 2026, passed.
There were no advisories at the latest test.
Mileage at that test: 9,268 miles, which matches the advertised 9,263 miles.
Advertised mileage is about 10,100 miles lower than the median mileage of a 2021 Smart forfour on AskCar.
Browse all Smart forfour cars for sale · 2021 Smart forfour price guide
More like this
- Used Smart forfour for sale under £8,000
- Used automatic Smart forfour for sale
- Used electric Smart forfour for sale
- Used Smart forfour for sale near Harrogate
Photos
28 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.