11. Honda Civic HF (2012)
The Honda Civic HF built upon the Civic’s reputation for reliability by putting efficiency front and center.
With aerodynamic enhancements and low rolling-resistance tires, the HF variant achieved an impressive 41 mpg on the highway.
This model showed how thoughtful refinements to an existing platform could deliver substantial gains, making efficient driving simple and accessible for everyday motorists.
[Source]