When the ALMS merged with Grand Am, ending with the 2013 Petit Le Mans, it also signaled the end of the 997 chassis' use in competition. 2013 wasn't a pretty year for the GT3 RSR in North America, as the balance of performance proved a bit unwieldy, and the competition got the long ends of many sticks. The "big one" at Baltimore didn't do Porsche …
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