The high attrition rate allowed the GT1 class to share some of the limelight on the podium, with Chevrolet overturning their defeat by Aston Martin in 2005, with a comfortable victory and an impressive third overall.
Reigning champions Oliver Gavin and Olivier Beretta, as well as guest driver Jan Magnussen managed to get the jump on the pole sitting DBR9 of Pedro Lamy, Stephane Sarrazin and Jason Bright, winning by a lap.
"Each time I win a race with Corvette Racing, I always think 'wow, that was a good one'!" said Beretta, who set a new ALMS record with his 25th career win, "It looks like every time we go to a race that we need to win, it is another fantastic victory. The car ran super fast, and we didn't have any problems at all. We just refuelled and put on new tyres - and we got the trophy as a team."
James Weaver, Butch Leitzinger and Andy Wallace brought the second Dyson Lola home in fifth place to take second in class, just ahead of the second Aston Martin GT1 of Darren Turner, Nicholas Kiesa and Tomas Enge and the second Corvette of Ron Fellows, Johnny O'Connell and Max Papis.
Panoz meanwhile completed a memorable weekend by converting their pole position into a debut GT2 race win for the Esperante GTLM. David Brabham led Scott Maxwell and Sebastian Bourdais to a tight victory, with the second place Flying Lizard's Porsche of Johannes van Overbeek, Jon Fogarty and Marc Lieb merely 30-seconds behind after 320 laps.
Risi Competizione made it three different brands in the top three, with Ralf Kelleners, Anthony Lazzaro and Jaime Melo giving the Ferrari 430GT a successful competition debut, while Tom Kimber-Smith lead Team LNT to an impressive fifth in class.