Smart MPG by model: real-world figures
Real-world fuel economy for 2 Smart models, reported by owners and set against the official figure engine by engine, from 566 submissions. Pick a model for the full engine table and to add your own figure.
Smart Forfour
2004–2019 · 10 engines with real-world data
46.6mpg
123 submissions
Smart Fortwo
2007–2019 · 18 engines with real-world data
53.3mpg
443 submissions
Where the Smart figures come from
Rebuilt from the archived Honest John Real MPG dataset after the site closed in 2026, with the official NEDC and WLTP figures kept alongside the owner-reported averages, plus new submissions from CarAdCheck readers. Each model page links to the archived page it was built from.
CarAdCheck is not affiliated with Honest John or Volkswagen Financial Services. How we rebuilt Real MPG.
Before you go and see it
Whichever Smart you settle on, these are the checks worth doing before you go and look at it.
How to haggle for a used car: negotiate the price with what its records showHPI check vs carVertical: which is better, and our pick for a UK carMOT advisories explained: how to check them, and which ones should worry you
All buyer's guides →