To this, this morning on the way to Denver going through the Rockies. Let me say, It was rather challenging driving, to say the least. Snow for over fifty miles. But at the first opportunity, i pulled the Defender over, locked the front and rear differentials, shoved the transmission in low gear, and played I'm Dreaming of a White Christmas on my iPad. Then, all of a sudden, the snow disappeared when we dropped down to 7000 feet.