WEC 6 Hours of the Circuit of the Americas
Porsche looked great at the Nurburgring, and I know many were unsure of their pace at a higher downforce track. But, their high downforce package proved to be a winner as they finished 1-2 in P1 (and overall). Porsche Team Manthey also went 1-2 in GTE-Pro, so it was a great result for Porsche at their home race.
That's obviously just a Porsche summary, but here's a COTA preview from The Checkered Flag.
http://www.thecheckeredflag.co.uk/2015/09/preview-fia-wec-6-hours-of-circuit-of-the-americas/