If you ever doubted the Cayenne's off road ability, check this out.

Audio is in German, but the video speaks for itself.

 

"Ze Porsche Cayenne ist besser than ze Galaendewagen....ja!"

 

I do love cayenne, have cayenne, and had 4 different G-wagens. so - this is not offroad. at first. at all. any xtrail will pass this track. because it is designed for good lookin picture.
about hill climbing. g-wagen never will go up in such hill with muddy condition at low rpm. because of its weight, almost a 1 tonn plus compared to cayenne. look sharply - it goes slowly, "in tense". what way, with common tyres - no way. but if they use power - as did cayenne - look, cayenne do accelerate and climbs at speed - g-wagen will go up higher 1000%. and g-wagen can engage all 3 locks - cayenne have only two - without engaging low gear in transfer case - thus more speed - more kinetic energy to climb up. so - this is a show