As a fellow "Seattleite" I've also added Scorpion Ice and Snows to my X5, but on the X5 19" Sport rims (I'm going to buy new summer rims next year).

The ride is *much* softer than my previous 19" Diamaris tires, with improved grip on the winter wet roads, and incredible traction on the run up to the mountains to ski.

It's not exactly "wintery" here in Seattle - but I'm very pleased with the look of the tires (19" as nature intended on the 4.4 Sport!) and the traction in both rain and ice.

I'd highly recommend them...