It was more of a James Bond dust screen.

Early in the session (3:45), the Cayman GTS just kissed the dirt on the left edge of the track going wide exiting turn 9 into the front straight. He recovered, but not before leaving a large dust cloud for me to drive through. Given the choice between a dust cloud or a spun/flipped Porsche in front of me, I will choose the former, thank you.