After 8yrs of GL450 4matic.....a beautiful car based AWD system.....I really love the auto 4WD on the "Slade!" Had to take her out into the stuff today.....and tracks better than my Benz did ( by that I mean...the Benz suffered from "road steering" when the front tires it the heavy stuff on the road)...the Escalade seems to proceed on a much straighter course ) has better wheel well openings for the "wheel thrown slop" to escape, gets control of any wheel slippage immediately ( was concerned about possible lag ) in AUTO....and, has the 4H and 4L to resort to if needed! So....all of that works as advertised! 