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
2021	Subaru	IMPREZA 4-Door SPORT	2.0L 4, auto CVT Awd	LEV-III SULEV30 / Tier 3 Bin 50	27	36	52	Average	Midsize Cars	Details
2021	Toyota	Sienna AWD	2.5L 4, auto CVT Awd	LEV-III SULEV30 / Tier 3 Bin 30	35	36	52	Average	Minivans	Details
2021	Honda	HR-V FWD	1.8L 4, auto CVT	LEV-III ULEV70 / Tier 3 Bin 70	28	34	52	Average	Small Wagons	Details
2021	Honda	HR-V FWD	1.8L 4, auto CVT	LEV-III ULEV70 / Tier 3 Bin 70	28	34	52	Average	Small Wagons	Details
2021	Kia	Soul	2.0L 4, auto CVT	LEV-III SULEV30 / Tier 3 Bin 30	28	33	52	Average	Small Wagons	Details
2021	Subaru	IMPREZA 5-Door	2.0L 4, auto CVT Awd	LEV-III SULEV30 / Tier 3 Bin 50	28	36	52	Average	Small Wagons	Details
2021	Subaru	IMPREZA 5-Door SPORT	2.0L 4, auto CVT Awd	LEV-III SULEV30 / Tier 3 Bin 50	27	35	52	Average	Small Wagons	Details
2021	Mini	COOPER S HARDTOP 2 DOOR	2.0L 4, auto [P]	LEV-III SULEV30 / Tier 3 Bin 30	26	35	52	Above Average	Subcompact Cars	Details
2021	Mini	COOPER S HARDTOP 4 DOOR	2.0L 4, auto [P]	LEV-III SULEV30 / Tier 3 Bin 30	26	35	52	Above Average	Subcompact Cars	Details
2021	BMW	330i	2.0L 4, auto stk [P]	LEV-III SULEV30 / Tier 3 Bin 30	26	36	51	Average	Compact Cars	Details
2021	Hyundai	Veloster	2.0L 4, auto stk	LEV-III ULEV70 / Tier 3 Bin 70	27	34	51	Average	Compact Cars	Details
2021	Hyundai	Veloster	1.6L 4, manual	LEV-III ULEV70 / Tier 3 Bin 70	26	33	51	Average	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.

"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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