1. Mitsubishi Mirage CVT Trans – 37 city / 44 highway / 40 combined
Among all non-hybrids sold in the U.S. the absolute best mpg-rated car is the humble Mitsubishi Mirage with automatic transmission.
You may have noticed its manual-trans sibling is also in this list? Both are motivated by a 1.2-liter DOHC 12-valve 3-cylinder engine. In the case of this 40 mpg version, the CVT option makes it do better than a manual, contrary to how manuals may perform next to other types of automatic transmissions.
Two trim levels, DE, and ES, and this one starts at $13,995 plus destination.