Straight line tracking is a bit imprecise, but that could be the truck. Usable on ice and packed snow, but you have to be careful and take your time. These are not winter tires, IMO, but will get you by if you must. Did some towing and city driving in snow and on ice last winter and don't recommend them for that. Otherwise, they're pretty good, but a bit overpriced. Wearing well after nearly 14K. Ride comfort is dependent upon load in this truck, and most of my driving has been unloaded; the ride is a bit harsh considering that, but is expected. No off-road use to date, no comment or rating for that.