These vehicles have the lowest "Green Scores" of all, according to the ACEEE.
Hummer H2 (16)
GMC Yukon 2500 (18)
Maybach 57S and 62S (19)
Lincoln Navigator (19)
GMC Sierra 2500HD (19)
Mercedes ML63 AMG (20)
Last updated February 03 2009: 1:00 PM ET
Hummer H2 (16)
GMC Yukon 2500 (18)
Maybach 57S and 62S (19)
Lincoln Navigator (19)
GMC Sierra 2500HD (19)
Mercedes ML63 AMG (20)