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Previously we listed the 10 most environmentally-friendly vehicles as determined by Forbes magazine. Now we go to the smoggy side to find the 12 worst polluters. Our source, this time, is the Green Book issued by the American Council for an Energy-Efficient Economy (ACEEE).

Each year, the ACEEE reviews vehicles and gives it a Green Score: the vehicle's overall environmental impact. The Green Score is based on fuel efficiency, tailpipe emissions, and vehicle gases contributing to global warming. Those with the worse scores are considered "mean" machines.

The worst top 12 Mean Machines from "least" worse to "most" worse are:
  1. Dodge Ram SRT-10
  2. Lamborghini Murcielago
  3. Bentley Arnage
  4. Dodge Durango 4.7 V8 4WD
  5. Dodge Ram 1500 4.7 V8 4WD
  6. Maybach 57S
  7. Hummer H2
  8. Ferrari 599 GTB Fiorano
  9. Ford F-250 Super Duty 5.4 V8 4WD
  10. GMC Yukon XL 2500 4WD
  11. Volkswagen Touareg V8 (pictured)
  12. Chevrolet Suburban 2500 4WD
[Source: ACEEE's Green Book Online via MSN Autos]


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      • 5 Months Ago
      to mrblazed- its ignorant people like you that make people like me so furious. And the sad thing is, being a US soldier, I, in my small way, give you the freedom to open your mouth and shove your foot right in. The Abrahms M1A1, and Bradley Fighting Vehicle are both hybrid diesel machines. The military is also very involved in researching ways to improve the efficiency of every vehicle, boat, and plane in its arsenal. Not just to help "save the environment" but to cut down on costs; read: tax dollars.
      • 8 Years Ago
      an interesting variation on this exercise would be to compile the list with the number of these miscreants sold. this would give a better idea of their total environmental impact. for example, the lamborghini, bentley, and ferrari are not common automobiles whereas every underendowed idiot in america has a hummer or ...
      • 8 Years Ago
      WOW Ferrari over a hummer?!?!?!?!?! that doesn't seem right
      • 5 Months Ago
      Where does the military industrial complex rate at? Oh yea wait, thats good for us because it stops terrorism right? Drop all the bombs they want, but just remember Your all bad little citizens for driving your hot rod through town spiritedly. Your bad Mrs. soccer mom for hauling the kids in a giant SUV, BAD BAD BAD Hmmm do they make a hybrid Abrahms tank yet? How aobut ECO-friendly bombs?