Stopping at one of my Infiniti dealers, I found out that the MB Mercedes (there was a comparison chart at the dealer, a comparison between the Infiniti QX4 and the MB SUV), is Full time 4WD, anybody knows more about it, to my knowledge (limited though), there is no other full time 4WD other than the Q?.........(fluid coupling, in my book, is only PART time 4WD), Avi