2016 GT3 Cup Challenge Schedule Joins WeatherTech Championship on 7 Weekends DAYTONA BEACH, Fla. (Dec. 14, 2015) –The 2016 Porsche GT3 Cup Challenge Schedule USA by Yokohama will feature 16 rounds on some of the most iconic road courses in North America. The International Motor Sports Association (IMSA) today unveiled […]
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