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	Mitsubishi	MIRAGE G4	1.2L 3, auto CVT	LEV-III ULEV70 / Tier 3 Bin 70	35	41	58	Above Average	Compact Cars	Details
2021	Honda	Accord Sport/Touring	2.0L 4, auto CVT	LEV-III SULEV30 / Tier 3 Bin 30	44	41	58	Above Average	Large Cars	Details
2021	Lexus	ES 300h	2.5L 4, auto CVT	LEV-III SULEV30 / Tier 3 Bin 30	44	44	58	Above Average	Midsize Cars	Details
2021	Toyota	AVALON HYBRID	2.5L 4, auto CVT	LEV-III SULEV30 / Tier 3 Bin 30	43	43	58	Above Average	Midsize Cars	Details
2021	Toyota	AVALON HYBRID XLE	2.5L 4, auto CVT	LEV-III SULEV30 / Tier 3 Bin 30	43	44	58	Above Average	Midsize Cars	Details
2021	Ford	MUSTANG MACH-E RWD	Electric (Li-Ion)	Tier 3 Bin 0 / ZEV	3.12	2.77	58	Above Average	Small Wagons	Details
2021	Lexus	UX 250h	2.0L 4, auto CVT	LEV-III SULEV30 / Tier 3 Bin 30	43	41	57	Above Average	Compact Cars	Details
2021	Mitsubishi	MIRAGE G4	1.2L 3, manual	LEV-III ULEV70 / Tier 3 Bin 70	33	41	57	Above Average	Compact Cars	Details
2021	Hyundai	Elantra	2.0L 4, auto CVT	LEV-III ULEV70 / Tier 3 Bin 70	33	43	57	Above Average	Midsize Cars	Details
2021	Toyota	Rav4 Hybrid AWD	2.5L 4, auto CVT Awd	LEV-III SULEV30 / Tier 3 Bin 30	42	38	57	Superior	Midsize SUVs	Details
2021	Ford	MUSTANG MACH-E AWD	Electric (Li-Ion)	Tier 3 Bin 0 / ZEV	2.95	2.54	57	Above Average	Small Wagons	Details
2021	BMW	330e	Electric (Li-Ion) / 2.0L 4, auto stk	LEV-III SULEV30 / Tier 3 Bin 30	2.13 / 25	2.37 / 33	56	Above 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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