I tried a set of Bridgestone RE960 Pole Positions last month. The fronts are stock sized, the rears 275-30/19. So far, they seem to be one of the better all season choices for the wet stuff. They're not going to do as well as dedicated snows, but if you're in the North East and looking to keep the stock wheels and with one set of tires year round, I'd recommend them. Dry handling is pretty impressive on them too.

I've tried Michelin snows in the past on another RWD sports car that I owned. It doesn't work miracles, especially in wider low profile sizes. Any AWD and most FWD with all-seasons will still do better in the snow. If you have access to another AWD or FWD it's still a better choice for when snow is expected. But the all-season compounds like the Pole Positions will stay pliable in cold weather, and are a good hedge against a surprise dusting to a couple inches. The OEM Michelins are summer only tires. As are all summer tires, they're made from a compound that gets brittle and slick at temperatures below 50 degress. Forget the snow -- they're even risky in the rain once the temperatures drop.