I haved lived in Northern Ill, Wisconsin, Kentucky, Colorado and Ohio. Areas that get a lot of snow days have better drivers than areas that get fewer and the amount of ice makes a difference. I never had a problem in Wisconsin or Illinois, generally just packed snow. Ky and Southern Ohio when there was a film of ice was sometimes a problem, not much you can do when going up a hill and having to stop and then you just slide backwards down the hill into a ditch.
The worst storm was in Colorado, the only true blizzard I have ever experienced, they sent us out to rescue people on I-25, most of the ground was bare, but wherever there was an obstacle, like a car, there would be a snow mound, it literally took about 10 minutes to bury a car. We pulled around 100 people out, only 2 dead. If you are stuck in snow deep enough to bury your exhaust pipe, get out and clear it periodically; you can die from CO poisoning
"After eight years as President I have only two regrets: that I have not shot Henry Clay or hanged John C. Calhoun."--1837