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
2020	Hyundai	Accent	1.6L 4, auto CVT	LEV-III ULEV125 / Tier 3 Bin 125	33	41	56	Above Average	Compact Cars	Details
2020	Kia	Rio	1.6L 4, auto CVT	LEV-III ULEV125 / Tier 3 Bin 125	33	41	56	Above Average	Compact Cars	Details
2020	Kia	Rio	1.6L 4, auto CVT	LEV-III ULEV125 / Tier 3 Bin 125	33	41	56	Above Average	Compact Cars	Details
2020	Lexus	UX 250h	2.0L 4, auto CVT	LEV-III ULEV50	43	41	56	Above Average	Compact Cars	Details
2020	Nissan	VERSA	1.6L 4, auto CVT	LEV-III SULEV30 / Tier 3 Bin 30	32	40	56	Above Average	Compact Cars	Details
2020	Toyota	YARIS	1.5L 4, auto stk	LEV-III ULEV125 / Tier 3 Bin 125	32	41	56	Above Average	Compact Cars	Details
2020	Hyundai	Elantra	2.0L 4, auto CVT	LEV-III ULEV70 / Tier 3 Bin 70	30	42	56	Above Average	Midsize Cars	Details
2020	Hyundai	Elantra	1.4L 4, auto	LEV-III ULEV125 / Tier 3 Bin 125	33	41	56	Above Average	Midsize Cars	Details
2020	Hyundai	Elantra SE	2.0L 4, auto CVT	LEV-III ULEV70 / Tier 3 Bin 70	31	43	56	Above Average	Midsize Cars	Details
2020	Kia	Forte FE	2.0L 4, auto CVT	LEV-III ULEV70 / Tier 3 Bin 70	31	41	56	Above Average	Midsize Cars	Details
2020	Tesla	Model 3 Standard Range Plus	Electric (Li-Ion)	Tier 3 Bin 0 / ZEV	4.4	3.92	56	Above Average	Midsize Cars	Details
2020	Honda	CIVIC 2DR	2.0L 4, auto CVT	LEV-III SULEV30 / Tier 3 Bin 30	30	38	55	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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