I have the Contis, put a sandbag in the back and drove mine except when it was seriously snowing. Didn't have any difficulties.

The one day I decided to leave the car in the garage and take the subway to work, so I wouldn't have an accident. I fell and broke my leg.

I can imagine that driving in 2-3 inches would be tough, but here in Boston they plow the roads pretty quickly. Use the gears and not the brake!