Hummer is BAD, don't go for it they stopped the production of hummers because they cant afford to keep it in the USA market line. They will give you bad service when you take it do get any service done, because it is a rare car to buy. Please save yourself from a big problem. The best is a Land Rover.
Look at the pick of the Land Rover in the sources (its a hooked up Land Rover.)
First of all the Hummer is not a car, it is a GMC pick up with a funky body on it.
If you want a luxurious 4X4 go with a Porsche Cayenne, Land Rover, or maybe the Lincoln MKX.
I don't know of any 2X2 cars, not even a Harley is a 2X2, it is a 2X1 or is it a 1X2, I can't figure that one out.