yea, you're not supppose to drive on snow with those kumhos. While they'll work fine on dry and wet grounds they weren't meant for use with snow or icy grounds. You should get some other dedicated snow tires or all season tires for snow conditions if you want to run the kumhos in the dry. Just be glad you didn't have a rwd car with those kumho tires on or you might not have made it home in the snow.