Greenest

Model Year 2017

Make and model Specifications Emission standard a MPG city MPG hwy Green Score
Hyundai Ioniq Electric b Electric (Li-ion bat.) Tier 3 Bin 0 / LEV III ZEV 4.67 3.79 64
BMW i3 (60Ah) b Electric (Li-ion bat.) Tier 3 Bin 0 / LEV III ZEV 4.08 3.30 64
Toyota Prius Eco 1.8L 4, auto Tier 3 Bin 30 / LEV-III SULEV30/PZEV 58 53 62
Fiat 500E b Electric (Li-ion bat.) Tier 3 Bin 0 / LEV III ZEV 3.59 3.07 62
Nissan Leaf b Electric (Li-ion bat.) Tier 3 Bin 0 / LEV III ZEV 3.67 3.00 60
Chevrolet Bolt b Electric (Li-ion bat.) Tier 3 Bin 0 / LEV III ZEV 3.78 3.27 59
Kia Soul Electric b Electric (Li-ion bat.) Tier 3 Bin 0 / LEV III ZEV 3.55 2.73 59
Toyota Prius Prime c Electric (Li-ion bat.) / 1.8L 4, auto LEV-III SULEV30 4.26 / 55 3.58 / 53 59
Toyota Prius C 1.5L 4, auto LEV-III SULEV30 48 43 58
Ford Focus Electric b Electric (Li-ion bat.) Tier 3 Bin 0 / LEV III ZEV 3.56 2.84 58
Honda Accord Hybrid 2.0L 4, auto Tier 3 Bin 30 / LEV-III SULEV30/PZEV 49 47 58
Kia Niro FE 1.6L 4, auto LEV-III SULEV30 52 49 58

[P] Denotes Premium Gasoline. 
"Auto CVT" denotes continuously variable automatic transmission.
a A listing with two emission standards (e.g., LEV II SULEV / Tier 2 Bin 3) denotes a single vehicle carrying both a federal and a California emission certification. Green Scores for such listings reflect the cleaner of the two certifications.
b Fuel economy for electric vehicles is provided in miles per kiloWatt-hour.
c Fuel economy for plug-in hybrids is provided in miles per gallon for gasoline operation and in miles per kiloWatt-hour for electric operation