The big advantage the Mercedes-Benz GL-Class GL320 BlueTEC has over its smaller mid size brother the M-Class SUV is the extra length and cargo capacity behind the rear seats. Most competitors in this class use a heavier-duty, truck-based frame design, however, the Mercedes-Benz GL-Class takes the more modern route with a car like platform. The Mercedes-Benz GL-Class GL320 has excellent ride comfort and agility for it's size. If you're in the market for a large SUV, and good on road manners are more important than ultimate off-road ability or maximum towing capacity, then the Mercedes-Benz GL-Class GL320 BlueTEC is worth checking out. With luxurious appointments and seating for 7, spacious cargo hold and impressive refinement, the GL320 is a top of class contender. With a 3.0 V6 210 HP diesel common rail engine, the GL320 BlueTEC is capable of averaging 25mpg in everyday use. The GL-Class GL320 BlueTEC models come equipped with a seven-speed automatic transmission, air-adjustable suspension and a fully automatic all-wheel-drive system requiring no driver input whether on or off road. Perhaps it is time to overcome our prejudice against diesel power!