I am looking to buy some Toyo Proxes 4 for my Pontiac g6 and I've heard they are a really good all-season tire, but I just wanted to know if anyone has much experience with them in the snow and how well they do? I also plan on getting them syped, so that should help also. One more thing, do car tires have different ply like truck tires, or does the car just have like basic passenger tires, 4 ply?