The battle for GT honors saw Extreme Speed Motorsports eek out the class win, in a deja-vu-like situation for Toni Vilander.

The Finn had to stretch the fuel mileage of his No. 01 Ferrari F458 Italia again, two years after running out of fuel on the last lap of the race when driving a Risi Competizione Ferrari.

However, it didn't happen this time, as Vilander and co-drivers Scott Sharp and Johannes van Overbeek celebrated victory, finishing 30 seconds clear of the second-placed No. 3 Corvette C6.R of Antonio Garcia, Jan Magnussen and Jordan Taylor.

"My engineer was on the radio during most of my last stint," Vilander said. "We were out on the fuel mileage. I did everything I could to save fuel. We were almost running a safety car [engine] map, trying to keep up the pace and cruise around. Once I heard we were [good] with the mileage, I was a bit more relieved.

"I must admit that a few tears came down when I passed by Turn 10a [the place where I ran out of fuel on the last lap in 2010] and actually took our car home."

The No. 55 BMW Team RLL BMW M3 GT of Bill Auberlen, Joerg Mueller and Jonathan Summerton completed the podium in third, following a costly stop/go penalty following the car's last stop due to pit lane infraction.

GT again saw heart-pounding action, with both Corvette Racing C6.Rs also enjoying time out front. A steering issue for the championship-winning No. 4 entry of Tommy Milner and Oliver Gavin (joined by Richard Westbrook this weekend), however, dropped them to a 12th place result in class.

BMW's No. 56 entry of Dirk Mueller, Uwe Alzen and Summerton finished fourth on Saturday, followed by the No. 45 Flying Lizard Motorsports Porsche 911 GT3 RSR of Joerg Bergmeister, Patrick Long and Patrick Pilet, who rounded out the top-five in class.

CORE autosport added to its victory tally in Prototype Challenge, with Alex Popow, Ryan Dalziel and Mark Wilkins taking their No. 06 Oreca FLM09 to a commanding two-lap victory in class.

It marked Popow's fifth ALMS class win of the season that saw the Venezuelan clinch the drivers' championship one race early at VIR.

The Rock Hill, S.C.-based organization locked up the teams' title even earlier at Road America in August, following a dominant year in the spec prototype ranks.

"It's really been an amazing season with winning Le Mans, Sebring and now Petit, and being so close to winning Daytona this year," Dalziel said. "I think I can retire or come back and do it all again next year!

"It's a great way for Alex to finish up his championship season. All credit to him for sewing up it up so that we had a little bit less pressure coming in here, so we could just go full attack for the win. And that's what we did."

Top honors in the ELMS GTE-Am category went to IMSA Performance Matmut, in their debut on U.S. soil.

The French squad's Porsche 911 GT3 RSR of Nicolas Armindo, Raymond Narac and Anthony Pons took the teams' championship and the auto-invite to next year's 24 Hours of Le Mans along the way.

The No. 60 AF Corse Ferrari, the only other car in the ELMS class, retired in the seventh hour.

GTC top honors went to NGT Motorsport, with Henrique Cisneros, Mario Farnbacher and Jakub Giermaziak each taking their first class victories in what was a dramatic final few laps.

The No. 22 Alex Job Racing Porsche 911 GT3 Cup car of Leh Keen, Cooper MacNeil and Dion von Moltke, which had clinched the championship last month in VIR, retired with just three laps to go after losing fuel pressure.

It promoted the No. 66 TRG Porsche to second, with the team's sister No. 68 entry completing the class podium in third.

RESULTS: 15th annual Petit Le Mans

John Dagys is SPEED.com’s Sportscar Racing Reporter, focusing on all major domestic and international championships. You can follow him on Twitter @johndagys or email him at