I Offset 
2009 BMW X5 Diesel xDrive35d 4dr SUV AWD (3.0L 6cyl Turbodiesel 6A)
Best Green SUV
 I've led a double life for years. I'm a committed environmentalist,  and at the same time I'm an SUV lover. I love SUV's because I'm 6'4", I'm claustrophobic, and I have a kid, dogs and a horse so I need to be able to haul a lot of gear. But I also totally believe that if we can't all reduce our carbon footprint our children's children will face some huge problems. So,  two years ago I traded in my Range Rover for a Mercedes ML 500, and last month I traded that in for the new BMW X5 diesel. I got 12 MPG with the Range Rover,  15.5 with the ML 500 (both on premium),  and so far (after 650 miles) I am getting 20.1 mpg on the X5. Not as good as a Prius,  BUT WAY BETTER TO DRIVE.