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Porsche 911 GT3 R Hybrid v2.0 - Click above for high-res image gallery

Porsche has pulled back the curtain on the second version of its 911 GT3 R Hybrid race car. The German automaker has managed to reduce the electrified racer's weight by mostly by toying with the hybrid drivetrain.

Two electric motors mated to a portal axle spin the front wheels with up to 200 horsepower for a few seconds at a time. That's in addition to the 470 horsepower on tap from the flat six-cylinder internal combustion engine mounted out back. Thanks to data collected during the previous generation 911 GT3 R Hybrid's time on track, which was extensive, engineers were also able to reconfigure the vehicle's high-voltage components and in the process, reduce the system's overall weight by 20%.

Doing so allowed for the deletion of those massive air intakes on the rear fenders of the old body (right, at last year's 24 Hours of Nürburgring). The new skin is significantly more aerodynamic and helps deliver increased fuel economy as a result. The 911 GT3 R Hybrid still uses an electric flywheel accumulator, though it and the rest of the hybrid kit is now stored in a carbon-fiber safety cell on the passenger side of the cabin.

Porsche plans to campaign the 911 GT3 R Hybrid 2.0 at various race events throughout the year, just like it did with the first car, starting with the Nürburgring 24 in June. Hit the jump for the full press release.

  • Porsche 911 GT3 R Hybrid 2.0 rear 3/4

  • Porsche 911 GT3 R Hybrid 2.0 front 3/4

  • Porsche 911 GT3 R Hybrid 2.0 cockpit

[Source: Porsche]
Show full PR text
Porsche Takes on Nurburgring 24 with An Even More Efficient 911 GT3 R Hybrid

Stuttgart/Atlanta March 17-- Porsche AG will enter the Nürburgring 24 hour race on June 25, 2011, with a more advanced version of the Porsche 911 GT3 R Hybrid. The priority for this latest edition was 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 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-liter - 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 bursts of multiple seconds at a time, drivers 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 storing energy mechanically as rotational energy, is now housed with the other hybrid components in a carbon fiber 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 optimization of the hybrid system's high voltage components, the large louvers 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, as well as from the ILMC race on China's Zhuhai circuit. The data was invaluable 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 consistent 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 Performance' 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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    • 1 Second Ago
      • 4 Years Ago
      Coolness I like the different thinking at play here Porsche is no doubt already building a more powerful version as we speak. This is genius can't wait till the trickle down effect in other cars as well
      • 4 Years Ago
      Branding something as "hybrid" is ineffective unless you are trying to sell to consumers who are image conscious about green. A vast majority of race fans and sports car owners are not worried about consuming green for motorsports b/c the carbon footprint of racing is inconsequential.

      They need to give the 911 GT3 Hybrid a different model designation that speaks to the substantive merit of the vehicle. It's a hybrid? Why? I don't care about the hybrid form, I care about what it does for performance. Most sportscar enthusiasts are the same way.

      We understand that hybrid means fuel-efficiency, political-correctness, and eco-consciousness. We don't consumer sportscars or sportcar info for those reasons. If it goes much farther on a tank of gas, and it requires fewer pitstops then call it an enduro or something. If it has a KERS style system, then fewer to it as e-boost or come up with some acronym that basically means electric NOS.

      If they want to sell the eco-conscious, politically-correct, fuel-efficient connotations to mainstream global middle class people who are quick to pull the regulatory trigger, they need to push this car on the nightly news, popular primetime TV, or other vanilla programming.
        • 4 Years Ago
        I think the point is that the word "hybrid" is accurate in this case, and just because you associate it with "the eco-conscious, politically-correct, [and] fuel-efficient" doesn't mean that the word can't evolve to include other cars using a hybrid power system. Porsche is trying to not only get people to see what the technology can do to racing, but also that the word hybrid can mean high performance as well as efficiency. And BTW efficiency isn't a bad thing in racing; fewer tanks of gas means fewer pit stops and less average weight carried over longer races, which means significant savings in time.
        • 4 Years Ago
        I don't mind Porsche referring to the car as a hybrid for technical reasons. A spade is a spade. I have a problem with Hybrid, a proper name and a brand for a Porsche GT3 variant.

        Porsche are a performance car company. Porsche's desire to alter the meaning of the word hybrid and their misplacement of the GT3 Hybrid (imo) in the media merely reinforces to me that racing organizers and sportscar manufacturers are ill-equipped to understand the connotations of the word hybrid in the US. Race organizers are flailing in their attempt to understand green and to develop new formulas for racing competition. It's not surprising. In the past, racing has set trends, not latched onto them.

        Hybrid has cultural connotations beyond Porsche's control b/c it includes cultural, moral, political, and other irrational human aspects that no longer embrace science or reasoning as a foundation. In politics, when you've lost control of a word's connotative meaning, but you have to address the issue, pollsters create new words and new brands. In politics they rebrand issues to manipulate voters, but in the automotive industry it is usually a more creative, value-driven activity.

        Why change the meaning of the word hybrid? What do they want it to convey? If it's technology, then call it the GT3 Tech. Why is it important that people know that race cars get better mileage and release less CO2? It's culturally and technologically progressive? Then call it the GT3 Pro (for Progress, but Professional would be an advantageous misinterpretation).

        Changing the meaning of the word "hybrid" is a precarious game that is completely unnecessary. Like I said above, luxury car companies, sports car companies, and racing organizers have always been trend setters. Following other companies and borrowing their brands, technologies, and connotative relationship to culture will be their swan song. When they are unremarkable, they will die.
        • 4 Years Ago
        I think it serves as an advertising/education platform for sports car/racing fans. With more and more strict regulations on fuel economy and CO2 emissions, this is Porsche's way of telling their customers to not fear the 'hybrid' moniker. This says that hybrids can be exciting and provide performance benefits as well. Because when Porsche rolls out a hybrid production model, they don't want customers to think that it is some sort of watered-down pansy model, Porsche can point to their hybrid race cars and show what the technology can do.
        • 4 Years Ago
        there not branding as a hybrid, by definition it is a hybrid it combines two different engines. They never claim that it has the purpose of a eco-hybrid.
        • 4 Years Ago
        The word hybrid has always meant and will always mean a combination of two different things. In automotive terms, it means a car with 2 types of propulsion, usually electric motor and ICE (petrol, diesel, etc). Hybrid vehicles sold to the public in the last decade or 2 have utilized this system for high efficiency (at the expense of speed, cost, and fun), giving hybrid cars and the word "hybrid" a stigma of eco-friendliness, "green", cars you buy not to save money but to "save the planet" or to fit into some type of trend (blame Hollywood actors).

        That is the problem of the public opinion, and the engineers/accountants responsible, not the word "hybrid". Porsche is adding electric motors and a battery pack/flywheel thing to the GT3 racer to boost performance and develop high performance without the expense of massive fuel consumption in road cars. Yes, the Cayenne hybrid is a half arsed attempt to pretend to be green, but Porsche is trying to suit hybrid systems to more sporting and driver enthusiast friendly environments.

        The same could be said about diesel. For years, diesels were mainly found in big huge trucks, and it was filthy, black smoke producing and had negative public misconceptions. Then, Audi developed their diesel R8 le mans car and it absolutely shattered the competition, and the conception of diesels as only useful in trucks and for fuel economy (at least in NA, europe always loved diesels). Despite being designed for speed and racing alone, the R8 lmp car was still given the traditional VW/Audi diesel moniker, the TDI badge. Did they have to reinvent a word to describe the fuel used, just because of public opinion? Definitely not. It was never called R8 enduro or R8 torque monster or anything like that, just TDI diesel. That revolutionized Le mans, and now diesel and gasoline prototype racers share the grid.

        This system by porsche is absolutely brilliant, and may change the face of Le Mans Gt classes to add variety and excitement, while keeping eco hippies at peace, too. Although there will always be people who would rather shoot themselves in the head than hear the word "hybrid" and "racecar" in the same sentence, most will welcome the variety it adds to racing.

        Oh crap, Ive just made my comment longer than the entire article! Sorry for rambling, I was bored.
      • 4 Years Ago
      This is crazy talk... you mean when you actually USE a technology (as opposed to simply giving it lip service), you'll find ways to make it better?!

      No way!
      • 4 Years Ago
      A while ago Adam Carolla had one of the drivers on CarCast. He gave a good description of the system, and how it was to drive. As Adam always says it is refreshing to have a driver actually know a little about the car they are driving instead of giving generic answers like:

      Q: How much power does it make?
      A: Oh, its peppy that's for sure.

      Anyway, good job to Porsche on keeping with this concept. Seems to be giving good results, and I'm sure will only get better. That 20% weight reduction would be something, but like others have stated I'm sure it is just off the drivetrain, not the whole car.
      • 4 Years Ago
      Must be a blast to punch those 200 HP electric motors as you're accelerating with an already wicked engine. Must be a boat load of torque as well.
      • 4 Years Ago
      50kg/1350kg = 3.7% weight reduction, not 20%

      Regardless, I want badly. Maybe they'll be willing to part with the 1.0 version?
        • 4 Years Ago
        "The German automaker has managed to reduce the electrified racer's weight by 20 percent, mostly by toying with the hybrid drivetrain."

        I don't really see this as sloppy editing. It sounds to me like the author did not miscommunicate the idea that this may be a drivetrain savings, but rather misunderstood the press realease, and thought that it was a weight savings of the entire car. You would think that anyone who knows much of anything about cars would see 20% (or around 600 lbs) weight saving as a red flag, and would not type this.
        • 4 Years Ago
        They probably meant 20% off of the hybrid components, not the entire car, but that's what you get with sloppy editing.
      • 4 Years Ago
      Congratulations, Porsche - you have created the first Hybrid I've been willing to download a high-res wallpaper of. Awesome machine. Good luck at the track!
      • 4 Years Ago

      I think using the Hybrid system to provide 4WD for launches and as Autoblog poster MyLexicon stated "electric NOS" is just brilliant.

      Removing the driveshaft for weight reduction - excellent.

      Instant torque on tap for the front wheels to aid launches - superb

      Compliance with future governmental mandated mileage restrictions - Done

      Plus I'll take a savings at the pump too !
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