I'm driving up to Vancouver from Dec 22 to Jan 3, and wonder if i should put
all weather tires on the car? I realize that even with AWD, summer performance tires are not going to do the trick. Also, any recommended roads
that are a must?

 

I would but some all weather tires on your car, the mountains in Northern California are a potential problem, and you never know with the weather in the PNW. It is snowing today in Vancouver, but is expected to turn to rain and wash the entire mess away.

I leave my PS2's on the car, but don't drive it if the weather is too cold, as the tires lose there effectiveness below 7C (45F).

 

Thanks, going to put winter tires on my second set of rims, shopping tire rack right now.