Yup Hwy 20 (North Cascades Highway) is the ultimate imho. A group of us on bimmerforums organize two drives during the summer via Hwy 20...always a blast!
2012 Audi R8 V10, 6MT, Suzuka Gray, Larini Clubsport exhaust, Klassen M52R, GMG springs, Satin Black badges
2012 Audi A6 3.0T Prestige, Moonlight Blue
2014 BMW 528i, Space Gray
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