Gislaved Nord Frost 100 diamond shaped studded tires on RTX Rims. The Gislaved is the next highest rated next to the Michelin X-Ice and are designed for high speed winter conditions. I drive the Coquihalla which has a speed limit of 120km/h which means everyone is doing 130-140. I went with the RTX rims because the looked so good on mitch514's Micra. The rims cost about $100 each from PMCTire.com and the Gislaved's are about $90.