DETROIT, MI - JANUARY 17: The 2015 Bentley Continental GT Speed Convertible is displayed during the opening day of the 2015 North American International Auto Show at Cobo Center on January 17, 2015 in Detroit, Michigan. (Photo by Paul Warner/Getty Images)
Image Credit: Paul Warner via Getty
9: Lexus LX570
Lexus LX570
ACEEE Green Score: 26
Image Credit: AOL
8: Mercedes-Benz GL 63 AMG
Mercedes-Benz GL 63 AMG
ACEEE Green Score: 25
Image Credit: Wieck
7: Ford Transit T150 Wagon FFV
Ford Transit T150 Wagon FFV
ACEEE Green Score: 25
Image Credit: AOL
6: Toyota Sequoia FFV
Toyota Sequoia FFV
ACEEE Green Score: 25
Image Credit: toyota
5: Mercedes-Benz G550
Mercedes-Benz G550
ACEEE Green Score: 23
LOS ANGELES, USA - NOVEMBER 18: Mercedes G550 is seen during Auto show at the LA Convention center in Los angeles, USA on November 18, 2015. (Photo by Mintaha Neslihan Eroglu/Anadolu Agency/Getty Images)
Image Credit: Anadolu Agency via Getty Images
4: Bentley Musanne
Bentley Musanne
ACEEE Green Score: 23
DETROIT, MI - JANUARY 12: Bentley reveals the Mulsanne Speed to the media at the 2015 North American International Auto Show at Cobo Center on January 12, 2015 in Detroit, Michigan. (Photo by Scott Legato/WireImage)
Image Credit: Scott Legato via Getty Images
3: Mercedes-Benz G63 AMG
Mercedes-Benz G63 AMG
ACEEE Green Score: 22
Image Credit: Wieck
2: Chevrolet G2500 Express / GMC G2500 Savana (Passenger)(MDPV)
Chevrolet G2500 Express / GMC G2500 Savana (Passenger)(MDPV)
ACEEE Green Score: 22
Image Credit: gmc
1: Mercedes-Benz G65 AMG
Mercedes-Benz G65 AMG
ACEEE Green Score: 20
The Daimler AG Mercedes-Benz G65 AMG vehicle is displayed during the 2015 New York International Auto Show in New York, U.S., on Thursday, April 2, 2015. The 115th New York International Auto Show, which runs from April 3-12, will reveal 60 plus cars and trucks as well as host a wide range of industry events attracting automobile executives and members of the media from around the world. Photographer: Michael Nagle/Bloomberg via Getty Images
