
The fuel economy of a car depends heavily on which model and powertrain you're looking at. The most recent gasoline-powered Smart Fortwo, sold in the US until 2019, achieved an EPA-estimated 36 mpg combined (33 city/39 highway). However, if you're considering the newer all-electric Smart EQ Fortwo, its efficiency is measured differently—it gets an EPA-estimated 124 MPGe (Miles Per Gallon equivalent).
| Smart Car Model & Powertrain | EPA-Estimated City MPG | EPA-Estimated Highway MPG | EPA-Estimated Combined MPG/MPGe |
|---|---|---|---|
| Fortwo (Gasoline, 2019) | 33 | 39 | 36 |
| Fortwo Electric Drive (EQ) | 124 MPGe (City) | 94 MPGe (Highway) | 124 MPGe (Combined) |
| Fortwo Cabrio (Gasoline, 2019) | 33 | 39 | 36 |
| Fortwo Electric Drive (EQ, 2017) | 118 MPGe | 100 MPGe | 109 MPGe |
It's important to understand that the gasoline model's 36 mpg is respectable for a city car but is often outperformed by modern hybrid and even some non-hybrid subcompacts. The real standout is the electric version's MPGe, which indicates exceptional energy efficiency. Your actual mileage will vary based on driving habits, terrain, and climate. For purely city commuting, the small size and tight turning radius of the Smart car make it efficient in stop-and-go traffic, but its highway fuel economy can be impacted by its relatively low horsepower.

I had a 2016 Fortwo for three years. On my mixed commute, I averaged about 35 mpg, which was fine. It was fantastic for parallel parking, but honestly, my friend's Fit got similar gas mileage with a lot more space inside. The mpg was good, but not mind-blowing compared to other small cars you can buy today. If you do mostly city driving, it's a decent choice.

Focusing on the electric EQ is more relevant today. It gets around 124 MPGe, which means it travels the distance equivalent to a gasoline car getting 124 mpg. You don't pay for gas, just electricity. For a daily commute under 60 miles, it's incredibly cheap to run. The charging time is the main factor, not mpg, so you need to consider your access to a charging station.

When you look up the official EPA numbers, the gasoline car gets 36 mpg combined. That's the starting point. But you have to ask yourself what you're comparing it to. A Toyota Corolla hybrid now gets over 50 mpg. So while the Smart car is efficient, its advantage is really its tiny footprint for urban living, not class-leading fuel economy. The numbers are good, but the segment has evolved.

Many people assume these tiny cars get phenomenal gas mileage, but the reality is more nuanced. The EPA rating of 36 mpg is solid, but it's not a hypermiling champion. The car's small three-cylinder engine works hard, especially on highways with hills or strong winds, which can drag the real-world number down. For optimal mpg, you'd need to drive gently in a mostly flat, urban environment. It's efficient, but don't expect Prius-level numbers from the gasoline version.


