The SS wheel designates that the car is equipped with the "wide track rack" for better steering in snowy conditions. The strings attach to the big things on either side of the head of the optional four-foot traction aid.
By the way, the Canadian power ratings were quite confusing, especially after Canada switched to the metric moose system.
Vikki, once that puppy is stuffed into a nice deep snowdrift, you have to look very hard to see the rust - drifting is a little different in Canada from the Tokyo kind. Winter isn't always the best time of year to buy a car up here.
Could you post that picture of my Firebird if you still have it? It might illustrate my point.