Winterize For Winter Use

[Okanebm]

So with my day off today, my wife and I watched the DVR'd episodes of "Elementary". In one of the episodes, Sherlock wrecks a car into a Boxster with a hardtop. After my initial shock, this got me to thinking about the winter. My plan from the beginning was to drive the Boxster as much as possible; of course my dearest plans to drive it much more. Got a good lead on W/D/S tires and will be picking up within the week if the deal doesn't go south. I did a full tuneup on the car when bought, plugs, tubes, oils, tb cleaned, coolant flush/fill, poor man's tranny rebuild, basically an Italian tuneup if a German had done it... Oh wait, that's right, I'm half-German. But my nagging thought has been the convertible top. So, here it is, is there anyone out there that will vouch that the Boxster soft-top will survive four-season use? And/Or is there anything else I should do to prepare the car for winter use?