I don't believe anyone is touting that snow tires will cure all accidents. However, you're tires are the only piece of the car that touches the tarmac; without the tire being able to grip, it doesn't matter how safe/aware you have been driving, you're no longer in control of your vehicle. Summer tires are dangerous in any kind of winter weather, especially if the road isn't completely dry; I wish LEOs could tow the vehicle if caught with improper tires.Originally Posted by ZXNasty
Everyone does not need to purchase winter tires. You can get by with A/S tires, if they have decent tread and have the snowflake symbol on them; you just need to be aware of the limitations your choice in equipment will provide you. Additionally, there are different levels of winter tires that you can choose from. A performance winter tire (e.g., Dunlop WinterSport) will outperform an A/S in any condition 50° or below. For someone who doesn't see all that much snow, performance winter tires are ideal, as it gives you better traction in the colder temperatures, and when accumulation actually happens, you're good there, too. Once it warms back up, you have your dedicated summers which would again outperform the A/S tire in any condition above 50°.