Whether you're a fair weather driver or an experienced Icelander, spinning out can happen. While driving north today, we passed a car upside down in a ditch. A small crowd had gathered, and as we ran over to see if we could help, the driver, a woman, emerged from the car, unscathed.
(Also, some beautiful Icelandic horses came over to check out the action.)
When the paramedics arrived they told us that even if the temperature is above freezing in general, in the valleys, any moisture on the road will freeze, and the slightest tap on the brakes can send you out of control, off the road, into a ditch, and flipped over.
I noticed that her tires weren't studded, but even though ours were, our car skidded a bit as we pulled over.
In iceland, studded tires are noisy and can damage the roads, but they do save lives.