I live at about 3000 feet and yet I pass Jeeps and other 4WD cars going up the grade in 3-6 inches of snow, With Blizzaks on my BMW The bimmer has got limited slip also. 4WD is no more better if you have open diffs and "all season tires" They are not turning any more wheels then me. And the wagon has got snows to and still does well if not better then the bigger is better guys and gals trying to get up the grade