The brand new Hummer Hx concept was introduced in 2008 North American International Auto Show, Detroit.New Hummer has a different style with a small interior and exterior, distinctive style. It gives you the pleasure of driving an open-air convertible SUV with the help of its removable doors and roof.It has the environment friendly engine that uses flexfuel which is 85 % ethanol and 15 % gasoline.They made it clear that a very similar Suv will be ready for showrooms in 2010 or 2011.