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	Chevrolet	VOLT	Electric (Li-Ion) / 1.5L 4, auto CVT	LEV-III SULEV30 / Tier 3 Bin 30	3.40 / 43	2.96 / 45	61	Superior	Compact Cars	Details
2019	Honda	ACCORD Hybrid	2.0L 4, auto CVT	LEV-III SULEV30 / Tier 3 Bin 30	49	48	61	Superior	Midsize Cars	Details
2019	Toyota	Prius	1.8L 4, auto CVT 4wd	Tier 3 Bin 30	53	48	61	Average	Midsize Cars	Details
2019	Kia	Niro FE	1.6L 4, auto	LEV-III SULEV30 / Tier 3 Bin 30	52	49	61	Above Average	Small Wagons	Details
2019	Kia	Niro Plug-in Hybrid	Electric (Li-Ion) / 1.6L 4, auto	LEV-III SULEV30 / Tier 3 Bin 30	3.34 / 48	2.95 / 44	61	Superior	Small Wagons	Details
2019	BMW	i3 REx	Electric (Li-Ion) / 0.6L 2, auto	LEV-III SULEV30	3.37 / 30	2.86 / 31	60	Superior	Compact Cars	Details
2019	BMW	i3s REx	Electric (Li-Ion) / 0.6L 2, auto	LEV-III SULEV30	3.37 / 30	2.86 / 31	60	Superior	Compact Cars	Details
2019	Honda	INSIGHT TOURING	1.5L 4, auto CVT	LEV-III SULEV30 / Tier 3 Bin 30	51	45	60	Superior	Midsize Cars	Details
2019	Tesla	Model 3 Long Range	Electric (Li-Ion)	Tier 3 Bin 0	4.05	3.66	60	Average	Midsize Cars	Details
2019	Kia	Niro	1.6L 4, auto	LEV-III SULEV30 / Tier 3 Bin 30	51	46	60	Above Average	Small Wagons	Details
2019	Hyundai	NEXO Blue	Fuel cell auto	Tier 3 Bin 0 / ZEV	66.759	58.9764	59	Superior	Compact SUVs	Details
2019	Tesla	Model 3 Mid Range	Electric (Li-Ion)	Tier 3 Bin 0	3.79	3.47	59	Average	Midsize 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.

"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

"...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

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