2018 Smart forfour prices

There are 49 used 2018 Smart forfour cars for sale from UK dealers on AskCar, as of 2 November 2026. Typical asking price £6,500 (the median: half cost less, half cost more). The cheapest is £3,740. The middle half are priced between £5,500 and £8,800. Median mileage: about 38,000 miles.

Dealers lowered the asking price on more than a third of 2018 Smart forfour cars: 17 of the 49 in the 14 days to 2 November 2026.

2018 Smart forfour prices by engine and mileage

EngineAll mileagesUnder 20,000 miles20,000 to 40,000 miles40,000 to 60,000 miles60,000 miles or more
1.0 petrol£5,500Too few for saleToo few for saleToo few for saleToo few for sale

Only 20 of the 2018 Smart forfour cars for sale have the 0.9 petrol engine, too few to give a typical asking price.

Typical asking prices are of 2018 Smart forfour cars for sale on 2 November 2026, and are given only where at least 20 cars with a price are for sale.

2018 Smart forfour against other years

A 2017 Smart forfour car has a typical asking price of £6,400, as of 2 November 2026.

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.

2018 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, recently reduced 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. 44 of the 46 cars listed here meet these rules. Page 2 lists every other 2018 Smart forfour car, cheapest first, including the 2 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 2018 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 3 cars whose advertised mileage is lower than the mileage recorded at their last MOT test.

Best value 2018 Smart forfour: priced furthest below the AskCar estimate

These 10 are priced 7% to 15% under their AskCar estimate. Their asking prices run from £3,740 to £7,485.

Cheapest 2018 Smart forfour: the lowest asking prices

These 10 are priced £3,740 to £5,350. They have covered 31,826 to 95,000 miles.

Lowest-mileage 2018 Smart forfour

These 10 have covered 14,433 to 28,521 miles. Their asking prices run from £6,260 to £10,499.

Recently reduced 2018 Smart forfour: the biggest price reductions in the 14 days to 2 November 2026

The dealer lowered the asking price on each of these 10 in the 14 days to 2 November 2026. Their reductions since AskCar first saw them run from £483 to £800.

Newly advertised 2018 Smart forfour: first seen by AskCar in the 7 days to 2 November 2026

These 7 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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