On this episode of Head 2 Head, Angus MacKenzie brings you the ultimate modern musclecar showdown -- 2013 Ford Shelby GT500 vs 2012 Chevrolet Camaro ZL1. It's an epic 3-round bout, with canyon carving up and down Mulholland Highway, hot laps at Mazda Raceway Laguna Seca with pro driver Randy Pobst, and a classic quarter-mile drag race finale. It's a winner-take-all battle for ultimate musclecar supremacy!