Hyundai and Kia have cooked up a neat idea that sounds like it’s straight out of James Bond or Mario Kart—deployable traction paddles that would effectively give you push-button snow chains. Realistic ...

That's why tire chain alternatives—tire socks, traction straps, studded tires (where allowed)—are so heavily advertised. But just like chains, all have compromises. Hyundai has a better idea: what ...