2013 Most and Least Efficient Vehicles

Most and least efficient vehicles of 2013 list is announced by U.S. Department of Energy.  The ranking is presented as four lists based on vehicle classes and each list is categorized by vehicle sizes within the category.
The fuel economy of gasoline based cars and truck didn't seem to improve much at all.  The only vehicles with outstanding mpg numbers are mostly some type of electric vehicle (EV) that does not have a gasoline engine.

EPA Class	Vehicle Description	Fuel Economy
		Combined
Two-Seaters	smart fortwo electric drive Convertible" A-1, 55kw DCPM, Electric Vehicle	107*
	smart fortwo electric drive coupe A-1, 55kw DCPM, Electric Vehicle	107*
Minicompacts	Scion iQ EV Electric Vehicle	121*
Subcompacts	Mitsubishi i-MiEV A-1, 49 kW DCPM, Electric Vehicle	112*
Compacts	Ford Focus Electric Automatic (CVT), 107 kW AC Induction, Electric Vehicle	105*
Midsize	Ford C-Max Energi Plug-in Hybrid 4 cyl, 2.0 L, Automatic (CVT), Regular	58‡
	Toyota Prius Plug-in Hybridn 4 cyl, 1.8 L, Automatic (CVT), Regular	58‡
Large	Tesla Model S (60 kW-hr battery pack) Automatic (A1), Electric Vehicle	95*
Small Station Wagons	Honda Fit EV A-1, 92 kW DCPM, Electric Vehicle	118*
Midsize Station Wagons	Toyota Prius v 4 cyl, 1.8 L, Automatic (CVT), HEV, Regular	42

See the full report