I was there working corners Sunday (also no pics). Beautiful weather & a 2011 E90 M3 won favorite car.
Both the E9x M3 student cars out sounded particularly gorgeous coming into & exiting out of turn 11. Andrew Cofelt's E92 M3... meh... not so much. But there were also a couple of M5's that about made my heart stop every lap. Man, those things are MEAN sounding!