Wich one has more mechanicli problems between the 2005 porche cayenne or 2005 range rover?

I had 2004 escalade and did like it.. then had 2005 yukon did like it too ,,maybe better than the escalade...now I drive a 2005 jaguar xj8 and love everything about it ..my first german car the only thing about it that I'm not happy with it is that is not a all wheel drive so I'm thinking on buying a 2005 porche cayenne s or a 2005 range rover .. but I would like to know wich one. Has more bad reputation ...please help...thanks