I'm not sure how best to judge but we got nearly 2 inches between last night and this morning and not everywhere was plowed or even laid down with sand or whatever the orange stuff is they lay down here. I was surprised how well the Prius drove (without snow tires). One place I went, I saw a few people fishtail and there were visible fishtail tracks but I didn't fishtail or feel the car slide or anything. So I'm giving it an A+. At one point, the car did freak out because the snow was covering one of the front sensors when I stopped at a stop light so that was slightly annoying but other than that, everything was fine.
Holy CARP! Pictures? I like to think I've been following the reviews but this is the first I've heard of this. Bob Wilson
Kinda related: third gen's with LED headlights had headlight washers, due to their not warming much, snow building up. Fourth gens don't appear to have the washers. (Here on the wet coast, I gave up in disgust: took the snows off a few days back.)