Porsche 911 GT3 R Hybrid Version 2.0


Porsche has announced that they will be entering an improved version of the Porsche 911 GT3 R Hybrid into the upcoming Nürburgring 24 hour race on June 25, 2011. Priority of the new car’s development was given to the improvement of efficiency through the targeted optimization of hybrid components, which also resulted in a 20 percent weight reduction. Version 2.0 of the 911 GT3 R Hybrid is intended to achieve the same lap times as its predecessor but with even less fuel consumption.

The Porsche 911 GT3 R Hybrid Version 2.0 is powered by a hybrid system that combines a 480 HP 4.0 Liter flat six engine placed in the rear with two electric motors that drive the front wheels. The two motors will add an extra 200 HP (100 hp each) as opposed to the 150 HP offered on the first model. This power is automatically activated through the throttle pedal and can be quickly called upon when zipping around a competitor. Other than situations where the extra power can be used to overtake the competition for a few seconds, the Porsche will rely on the 4.0L engine for its stamina.

The other main difference with the new hybrid system is that the flywheel accumulator and other hybrid system components will be housed in a new carbon fibre safety cell positioned in the passenger-side area of the interior. This means these components, previously exposed to heat, won’t need to be cooled by aerodynamic-hindering large vents in the rear haunches. This means Version 2.0 will more slippery through the air.

Overall, the new 911 GT3 R Hybrid Version 2.0 now weighs 1300kg, a 50kg reduction from the previous car's weight of 1350kg. The interior has also been updated, with the displays and controls moved to the steering wheel. According to Porsche, drivers can operate the rest of the functions via backlit buttons now situated on the centre console.



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Press Release

Nürburgring 24 hour race

Porsche lines up with an even more efficient 911 GT3 R Hybrid

Stuttgart. Porsche takes up the Nürburgring 24 hour race on 25 June with a further developed version of the Porsche 911 GT3 R Hybrid. Priority of the development was given to the improvement of efficiency through the targeted optimisation of hybrid components, which also resulted in a 20 percent weight reduction. Version 2.0 of the 911 GT3 R Hybrid is intended to achieve the same lap times as its predecessor but with less fuel consumption.

The general layout of the hybrid was adopted from the 2010 model. A portal axle with two electric motors drives the front wheels and supplements the four-litre, depending on the balance of performance classification approximately 470 hp, six-cylinder boxer engine at the rear. The output of both electric motors has increased from 60 to 75 kilowatts each. For seconds at a time, pilots now have almost an additional 200 hp at their disposal with the 911 GT3 R Hybrid 2.0. Depending on the programming, this power is automatically activated through use of the throttle pedal. Moreover, pilots can manually call up this extra power, for instance when overtaking.

The electric flywheel accumulator, with its rotor spinning up to 40,000 rpm and stor-ing energy mechanically as rotational energy, is now housed with the other hybrid components in a carbon fibre safety cell on the passenger's side.

At first glance, the new GT3 R Hybrid is clearly distinguishable from the 2010 model. Thanks to the optimisation of the hybrid system's high voltage components, the large louvres in front of the rear fenders were no longer necessary. This reduces drag and also lowers fuel consumption. All in all, the weight of the vehicle decreased from 1,350 to 1,300 kilograms.

"We've collected a great deal of information from our races on the Nürburgring, at the ALMS race at Road Atlanta in the USA, as well as from the ILMC race on China's Zhuhai circuit, which was an invaluable help for the further development of our racing laboratory," says Hartmut Kristen, head of Porsche motorsport. "The emphasis of our work was on improving efficiency. That means we want to keep the lap times consis-tent with 2010 but use less energy, hence less fuel. In this way, we support future developments of road-going, sporting hybrid vehicles."

The cockpit of the 911 GT3 R Hybrid has also been completely revised. Most of the displays and controls have moved to the steering wheel. Drivers can operate the rest of the functions via backlit buttons now situated on the centre console. Priority was placed on the ergonomics and the clear layout for pilots - particularly in darkness.

The new 911 GT3 R Hybrid is a perfect example of the ‘Porsche Intelligent Perform-ance' philosophy, a principle found in every Porsche: More power on less fuel, more efficiency and lower CO2 emissions - on the race track and on the road.

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