The Suburban comes in either rear- or four-wheel drive and can seat up to nine passengers in its three rows of seats. It comes standard with an iron-block 350hp 6.0-liter V-8 that features variable-valve timing. However, it does not have cylinder deactivation. It is controlled by a four-speed automatic and, when properly equipped, can tow up to 8,100lbs. Its safety features include: all-disc antilock brakes, traction control and GM's StabiliTrak electronic stability system.The Chevrolet Suburban is all-new for 2007.