I am thinking of getting an IS 300 for my Wife, but we live in IOWA the center of SNOW!!! We recently sold our 04 Pontiac GTO and she hated driving that in the snow, however we didn't have snow tires on it. Anyone have any opinions on the IS in the snow with and without snow tires?? The only other car she is thinking about would be the Audi S4? Someone fill me in!