The race for the GT class victory in the season-ending Petit Le Mans came down to speed versus fuel economy. With the No. 3 Compuware Corvette C6.R driven by Jan Magnussen, Antonio Garcia, and Jordan Taylor cutting seconds from the No. 01 Ferrari’s lead with every lap, Ferrari driver Toni Vilander made it to the finish without a final fuel stop. Thus the No. 3 Corvette finished second for the fifth time in 10 American Le Mans Series races this season.
The winning Ferrari and the runner-up Corvette both completed 375 laps on the 2.54-mile Road Atlanta circuit, with the Ferrari 30.676 seconds ahead at the checkered flag after nine hours and 37 minutes of intense racing. The championship-winning No. 4 Compuware Corvette of Oliver Gavin, Tommy Milner, and Richard Westbrook pitted from the lead just before the six-hour mark with a steering problem, and lost 26 laps to the leaders while the Corvette crew replaced the rack, ultimately finishing 12th.
Article source: http://classiccarcollectornews.com/blog/2012/10/21/the-race-for-the-gt-class-victory-ferrari-1-corvette-2/