I'm in my Yukon, in the driveway at my parents'. The topology is basically the same, but the high point of the circular driveway, instead of being flat, is a steep hill up to a higher point. I drive as if from the house, around the driveway counter-clockwise, up the steep part. It is about a foot deep of thick mud, but my truck just creeps and grinds through it. I can feel the grip of the 4WD in a most satisfying way.