Porsche added another tier of excitement to this year’s 2018 Pikes Peak International Hill Climb, as the German manufacturer launched a brand new category for their GT4 Clubsport machine. Star names such as IndyCar’s J.R. Hildebrand, X-Games master and 4-time Rally America Champion Travis Pastrana and former Major League Baseball pitcher C.J. Wilson were invited to compete, with Mobil 1 The Grid for company.