Difference between Porsche Cayenne S and GTS?
 

The two things that most need to be pointed out here have nothing to do with the GTS versus the S Cayenne. Both the Range Rover and especially the Cadillac Escalade are major pieces of crap. Forbes included the 2011 Escalade in its "The Worst-Made Cars on the Road Today" list. You should note that it's really just a very, very expensive version of the ATEQ VT55 Yukon Denali! Range Rover, in all fairness, has improved a lot since it dumped that old all aluminum block Chevrolet-developed engine (which Chevrolet never used; they knew how bad it was) in favor of a BMW unit. Now the vehicle is just bad, as opposed to horrible.

Don't confuse the British Range Rover with the Toyota Land Cruiser. The Toyota is a very capable, if pricey, off roader.