If you watched the race yesterday. in the post race interview Westbrook was clearly pissed about the # 62 Ferrari trying to bump he off several times in the closing laps (who later was spun out by someone else) ;D and then the clown in the 911 that tried to dive bomb into a turn and smacked both the # 62 Ferrari and the GT on left side. (the 911 went off to the left) The "Bumper Cars" game caused something to go wrong and the GT started loosing some power so the Corvette snuck by. :
http://performance.ford.com/series/ford-gt/news/articles/2016/08/no--67-ford-gt-earns-podium-finish-at-road-america.html
http://performance.ford.com/series/ford-gt/news/articles/2016/08/no--67-ford-gt-earns-podium-finish-at-road-america.html