Best by Class

Starting with the latest model year, these vehicles scored highest in their vehicle class.

Year	Make	Model	Specification	Emission Standard	MPG City	MPG Hwy	Green Score	Class Ranking	Class
2019	Hyundai	Ioniq Electric	Electric (Li-Ion)	Tier 3 Bin 0 / ZEV	4.67	3.79	67	Superior	Midsize Cars	Details
2019	BMW	i3	Electric (Li-Ion)	Tier 3 Bin 0 / ZEV	3.69	3.02	65	Superior	Compact Cars	Details
2019	Hyundai	Ioniq Blue	1.6L 4, auto	LEV-III SULEV30 / Tier 3 Bin 30	57	59	65	Superior	Midsize Cars	Details
2019	BMW	I3s	Electric (Li-Ion)	Tier 3 Bin 0 / ZEV	3.69	3.02	64	Superior	Compact Cars	Details
2019	Honda	Clarity Electric	Electric (Li-Ion)	Tier 3 Bin 0 / ZEV	3.74	3.06	64	Superior	Midsize Cars	Details
2019	Nissan	LEAF	Electric (Li-Ion)	Tier 3 Bin 0 / ZEV	3.68	2.95	63	Superior	Compact Cars	Details
2019	Hyundai	Kona Electric	Electric (Li-Ion)	Tier 3 Bin 0 / ZEV	4.06	3.23	63	Superior	Compact SUVs	Details
2019	Hyundai	Ioniq Plug-in Hybrid	Electric (Li-Ion) / 1.6L 4, auto	LEV-III SULEV30 / Tier 3 Bin 30	3.65 / 53	3.37 / 52	63	Superior	Midsize Cars	Details
2019	Honda	INSIGHT	1.5L 4, auto CVT	LEV-III SULEV30 / Tier 3 Bin 30	55	49	63	Superior	Midsize Cars	Details
2019	Hyundai	Ioniq	1.6L 4, auto	LEV-III SULEV30 / Tier 3 Bin 30	55	54	63	Superior	Midsize Cars	Details
2019	Kia	Soul Electric	Electric (Li-Ion)	Tier 3 Bin 0 / ZEV	3.67	2.77	63	Superior	Small Wagons	Details
2019	Nissan	LEAF	Electric (Li-Ion)	Tier 3 Bin 0 / ZEV	3.68	2.95	62	Superior	Compact Cars	Details

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auto cvt

denotes continuously variable automatic transmission.

auto stk

denotes manually adjustable automatic transmission

[CNG]

denotes Compressed Natural Gas

[P]

denotes premium gasoline.

[D]

denotes diesel

Emission Standards:

A listing with two emission standards (e.g., Tier 2 bin 5 / ULEV II) denotes a single vehicle carrying both a federal and California emission certification. Green scores for such listings reflect the cleaner of the two certifications.

Battery-Electric Vehicle Fuel Economy:

Fuel economy for pure battery-electric vehicles is provided in miles per kilowatt-hour.

Plug-in Hybrid Fuel Economy:

Fuel economy for plug-in hybrids is provided in miles per gallon for gasoline operation and in miles per kilowatt-hour for electric operation.

"...It's easy-to-use rating system makes it a snap to see the green from the mean. So enlighten your mind and free your lungs and check out ACEEE's Green Book before you buy."

Motor Week, Maryland Public Television

"For those of you who are more inclined to buy green than you are to drive through it as fuel prices rise, I can recommend no better resource than ACEEE's Green Book...[It] offers solid, practical, well-researched, balanced advice."

Warren Brown, Washington Post

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