Sorted by Combined MPG. Click on column headings to resort the table.
Vehicle Name
Energy Impact Score
Greenhouse Gas Emissions (Tailpipe)
2012 Buick LaCrosse eAssist 2.4 L, 4 cyl, Auto(AV-S6), Regular Gasoline
11.4 barrels per year
306
grams of CO2 per mile
2012 Buick Regal eAssist 2.4 L, 4 cyl, Auto(AV-S6), Regular Gasoline
11.4 barrels per year
306
grams of CO2 per mile
2013 Buick LaCrosse eAssist 2.4 L, 4 cyl, Automatic (S6), Regular Gasoline
11.4 barrels per year
305
grams of CO2 per mile
2013 Buick Regal eAssist 2.4 L, 4 cyl, Automatic (S6), Regular Gasoline
11.4 barrels per year
305
grams of CO2 per mile
2013 Buick Encore 1.4 L, 4 cyl, Automatic (S6), Regular Gasoline
11.8 barrels per year
317
grams of CO2 per mile
2013 Buick Encore AWD 1.4 L, 4 cyl, Automatic (S6), Regular Gasoline
12.7 barrels per year
348
grams of CO2 per mile
2012 Buick Verano 2.4 L, 4 cyl, Automatic (S6), Regular Gasoline or E85
Gas
13.2 barrels per year
355 grams of CO2 per mile
E85
4.2 barrels per year
350 grams of CO2 per mile
2013 Buick Verano 2.4 L, 4 cyl, Automatic (S6), Regular Gasoline or E85
Gas
13.2 barrels per year
361 grams of CO2 per mile
E85
4.2 barrels per year
355 grams of CO2 per mile
2013 Buick Verano 2.0 L, 4 cyl, Automatic (S6), Regular Gasoline
13.7 barrels per year
371
grams of CO2 per mile
2012 Buick Regal 2.0 L, 4 cyl, Manual 6-spd, Regular Gasoline or E85
Gas
13.7 barrels per year
370 grams of CO2 per mile
E85
4.4 barrels per year
370 grams of CO2 per mile