We don't get much snow in NC, but I have noticed the same thing when we do have storms - that most of the vehicles that run off the roads and get stuck are SUVs. I think that is partly due to overconfidence and partly due to most people in regular cars staying off the roads in snow while SUV drivers think their vehicles can handle any conditions.

Another thing you sometimes see here are SUVs stuck in the sand on beaches and then ruined when the high tide comes in. SUVs are allowed to drive on some of the beaches here on the Outer Banks, and every summer you see news articles/photos of some schmucks who get stuck in the sand and can't get free before the tide rolls in.