If anyone believes in trends, then Beretta and Gavin are in a good spot. The pole-sitting car in class has gone on to win each of the previous three races in the Series.
"We are allowed to race but not allowed to crash each other," Beretta said, nixing the idea of team orders. "There has to be a safe place to do it and make sure not to crash our sister car."
O'Connell and Jan Magnussen had been quickest in each of the three previous sessions but Beretta and Gavin won last year at Miller Motorsports Park. This also serves as the team's final warm-up before next month's 24 Hours of Le Mans, so there is added attention to every little detail, Beretta said. That's the reason Corvette has won in class there five times in the last seven years.
"We've started working on our aero package for Le Mans and we've been sharing our setups between the two cars," said Beretta, who leads all Series drivers with 22 pole positions. "Then we switched to some fresh tyres before the qualifying and everything linked up. It's very important to have a good race here and keep it out of trouble. This is a great preparation for Le Mans but the cars need to be in good shape because we'll need them there. Le Mans is the most important race to us and we are going there very confident and hope we will do very well."
Flying Lizard Motorsports' Wolf Henzler took the GT2 pole position in a dead heat with Risi Competizione's Jaime Melo. Both drivers turned in a lap of 1m 47.135s (102.420 mph) but Henzler's Porsche 911 GT3 RSR posted the time first and was awarded the top spot.
"It was such an exciting end to qualifying. It came down to the last car," Henzler said. "We both did a good lap. The team was watching the TV and he did the same lap time. It's unbelievable that two cars did the same time. Fortunately I did it first so we have pole position. It's a great day for Porsche."
It almost wasn't one for Henzler. Early the session, he locked up his brakes under cornering and went off track, collecting a large amount of dust and debris on the car and Michelin tyres.