Does the Impreza have skid plates stock?
As for wind noise, is it a design issue, or is it something a bit of dynomat can fix?
I should add, my fiance has a Trailblazer, equipped with Blizzaks, so deep/bad snow will belong to the Trailblazer once we are married (next summer).
And the amount it snows is never the issue, it's the 2 foot drifts that form over the roads that is a problem. I used to bust through them with my Golf, but it was a little scary as some of them were up to the beginning of the hood. The last two winters haven't been as bad as years past though.