When GRAND-AM and the American Le Mans Series merged ahead of the 2014 season, the new rules structure meant that it was time for a brand new Porsche 911 for the GT racing scene. Based on the Porsche 911 GT3 Cup, Porsche Motorsport introduced the 470 hp -"GT America" in August of 2013, well before the IMSA GTD Class ("GT Daytona") rules were …
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