Originally Posted by elistan
For what it's worth, everybody, the OP has Pirelli Sottozeros, which ARE winter/snow tires. They are not all-season or summer tires.
The Sottozeros (which are what I'm currently running) are performance snow tires. That means they lean more towards better driving dynamics in cold and dry conditions rather than optimizing for driving in actual deep snow. Studless snow tires offer better in-snow grip at the expense of dry performance.
So that's where the distinction comes in.