I wouldn't imagine to many if us know how the hybrids will actually do in the winter as they came out mid spring.
If you live somewhere like you and I do, I'm in Edmonton Canada, we have real winters so winter tires are always recommended. You'd probably even want studded winters. I'm not technical enough to answer your other questions, sorry.
If you live somewhere like you and I do, I'm in Edmonton Canada, we have real winters so winter tires are always recommended. You'd probably even want studded winters. I'm not technical enough to answer your other questions, sorry.