Started 43rd - Finished 18th - 350 laps - 889 miles (1430 km)

Started 43rd - Finished 18th - 350 laps - 889 miles (1430 km)

One of the many highlights of this gripping season final was the race premiere of the Porsche 911 GT3 R Hybrid in the USA, which received huge public interest. The sports car with ground-breaking drive technology and the Le Mans winners Timo Bernhard (Germany), Romain Dumas (France) and Mike Rockenfeller (Germany) at the wheel again demonstrated its reliability, performance and efficiency. Despite several tire punctures, the 911 GT3 R Hybrid competed in the unclassified GTH class for experimental cars, and went on to conquer this difficult circuit without any technical problems. For the Porsche engineers, this test outing yielded many crucial insights in order to further perfect the innovative hybrid drive.

"Once again we learned a lot from racing our hybrid car," summarised Porsche's head of motorsport Hartmut Kristen. "I'm proud that this innovative system ran over nine hours without a single problem. From our standpoint, it is equally as important that our development engineers have again collected a huge amount of important data."

The 911 GT3 R Hybrid is a mild hybrid car, meaning it is unable to run solely on electrical power. It uses a KERS system (kinetic energy recovery system) developed by the Williams F1 racing team. The hybrid setup uses a flywheel generator and a regenerative braking system to power two electric motors mounted at the front of this rear-engined vehicle. Porsche calls the system Intelligent Performance.

The two electric motors produce up to 120 kW (163 PS / 161 hp) of power in eight-second bursts of electricity provided by the rest of the system. The flywheel generator is also powered by the engine - a 4.0 liter six-cylinder gasoline/petrol power plant with 353 kW (480 PS / 473 hp).

Gallery: Porsche 911 GT3 R Hybrid makes North American track debut at the 2010 Petit Le Mans [video]