The general theory of traction relativity while driving in the Rockies states that all-wheel drive Subarus are the best, followed by four-wheel drive, and then front-wheel drive, vehicles. Little rear-wheel drive trucks like mine don’t even fit in the equation.
My snow tires are top of the line Hankooks but I needed some weight over the rear end so I stopped into ACE and got four eighty pound sand bags. At five bucks a piece, it’s a great economical way to create 320lbs of traction.
I’m not sleeping back there and we can use the sand in the yard come Spring.