Top BMW was Nicky Catsburg in eighth , at 0.678 off the pole .
Kevin Estre split the pair of yellow Corvettes in his No. 912 Porsche 911 RSR .
Top BMW was Nicky Catsburg in eighth , at 0.678 off the pole .
Kevin Estre split the pair of yellow Corvettes in his No. 912 Porsche 911 RSR .