This year's greenest and meanest cars
Boston.com
2. Mercedes-Benz GL320 CDI
2. Mercedes-Benz GL320 CDI
This one’s big, beautiful, and mean: Its gets 20 miles per gallon for the city and 25 for the highway, but its green score was just two points higher than the biggest loser’s. Shown here is the four-door GL450.

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(Cars.com)