For owners who want to see how far into the wilderness the Hummer can take them, they'll be treated to features that even some of the most extreme rock crawlers lack. For example, the Ultravision feature provides real-time camera angles of the underbody of the truck to allow drivers to see what they're driving over. Should one find themselves on a particularly tricky trail, Extract mode allows the entire vehicle to lift itself a further 6 inches to gain added cleara The Air certainly won’t be al...