Circuit of the Americas, Austin, TX October 7-8, 2015 Michael Donohue’s ’63 Corvette leads Fritz Seidel’s ’73 Porsche 911RSR IROC and Curt Vogt’s ’70 Boss 302 Ford Mustang into Turn 1.Photo: Chuck Andersen A.C. D’Augustine raced this ’65 Genie Mk10B.Photo: Michael Casey-DiPleco Racing this ’75 Ford Escort RS MkI was Sean Brown.Photo: Chuck Andersen Joseph Colasacco brought out his exquisite ’65 Ferrari 1512 F12.Photo: Chuck Andersen Start of the Hawk Performance Historic GT/GTP Enduro.Photo: Michael Casey-DiPleco