2021 Smart forfour prices

There are 12 used 2021 Smart forfour cars for sale from UK dealers on AskCar, as of 2 November 2026. Typical asking price £8,000 (the median: half cost less, half cost more). The cheapest is £6,799. The middle half are priced between £7,200 and £8,000. Median mileage: about 19,000 miles.

AskCar lists 259 used Smart forfour across the UK, from 217 dealerships.

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.

2021 Smart forfour cars for sale now, page 1 of 2

This page picks out up to 10 cars in each of these groups: best value, cheapest, lowest mileage and newly advertised. A car in more than one group is listed in full once. The groups pick only from cars with photos and an AskCar estimate, priced at £500 or more and no more than 25% under that estimate. 9 of the 10 cars listed here meet these rules. Page 2 lists every other 2021 Smart forfour car, cheapest first, including the one the groups do not pick from.

The AskCar estimate is our expected asking price for that one car, from its model, age, mileage and specification, using the 246 priced Smart forfour adverts on AskCar as of 2 November 2026. The figures on this page describe the cars advertised, not a valuation of every 2021 Smart forfour.

Each car: year, make, model, engine and trim, power, gearbox, fuel, body, doors, colour; mileage; price and its changes; how the price compares with the AskCar estimate; emissions standard and ULEZ compliance where it holds; MOT; dealer and town; AskCar page. Each car's AskCar page has its full price history and cheaper cars like it.

This list leaves out 2 cars whose advertised mileage is lower than the mileage recorded at their last MOT test.

Best value 2021 Smart forfour: priced furthest below the AskCar estimate

Their asking prices run from £6,799 to £9,595.

Cheapest 2021 Smart forfour: the lowest asking prices

These 9 are priced £6,799 to £9,595. They have covered 5,276 to 27,000 miles.

Lowest-mileage 2021 Smart forfour

These 9 have covered 5,276 to 27,000 miles. Their asking prices run from £6,799 to £9,595.

Newly advertised 2021 Smart forfour: first seen by AskCar in the 7 days to 2 November 2026

These 4 are the most recently advertised. Cars first seen on the same day are listed cheapest first.

Smart forfour by gearbox, fuel and body

Smart forfour prices by year

Smart forfour by trim

Smart forfour by price

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