Honestly, I've driven super HP summers in New Jersey winters. Even at 20 deg (F) they are adequate
if you realize what you are dealing with. Add some snow and its a totally different story - scary!!!!!!!!. But i have, for instance driven from Bennington VT to Morristown NJ on Christmas day early morning, in my track car (Hi Bruce!) on -- get this -- Bridgestone RE-71Rs. Square 255/40-17 all around. These make "normal" summer tires look like snows. They are autocross tires and the Miata cup spec tires. The hype over how awful and dangerous they (any dedicated summer tires) are in cold weather is over-played, probably to make a key point to clueless daily drivers (who also text and makeup and drink and drive, at once). You simply need to realize that you will lose 30-40% of your grip under those circumstances. Now, how much do you lose going to winter tires in the first place? I don't know, but its a lot.
But why speculate? ---- Learn them! Go out on a vacant road and slam on the brakes. What happens? Now you know the limits.
I also have winter tires on my base/street car on another set of (16") wheels.
You have to ask: "why did i buy one of the best handling sports cars on the planet?" and "is it worth compromising that over a 2nd set of wheels and tires". Or, simply drive it only int eh dry during the winter months.
If you MUST get an all season check out the Michelin Pilot sport A/S. I had them on my Audi S6 wagon. The were pretty nice tires. But, taking my own advice, i replaced them with dedicated snows and SuperSports.
/Rant :-)
Grant
Grant
gee-lenahan-at-gee-mail-dot-com