991 Porsche 911 spy shots – Click above for high-res image gallery

The next-generation Porsche 911 will be a significant departure from all previous generations, though to the untrained eye that could be a hot-air boast. The chief novelty of the 991, confirmed for us recently by Porsche sources in Germany, is that the entire range will benefit from a KERS device, such as what was used by a couple of teams in Formula 1 in 2009 and then immediately banned by the FIA for the 2010 season as an unfair advantage, only to be allowed again for this 2011 season.

The Kinetic Energy Recovery System takes brake energy recuperation to a whole new sophisticated level, putting it on reserve for when you want the pedal on the metal for quick overtaking. But it's not stored in any additional onboard battery system – instead, it is meted out via a dedicated special flywheel system.

The chief giveaway that Porsche is definitely planning the KERS strategy is the added wheelbase length of four whole inches together with added vehicle length of 2.75 inches. Just the right amount of distance for incorporating the new flywheel technology between the gearbox and engine.

Though the starter 991 911 Carrera is earmarked to have 350 horsepower from a smaller 3.4-liter flat-six engine, the KERS ingredient will give the car acceleration figures comfortably quicker than the 4.7-second 0-to-60 time of the current 997 911 Carrera. And this direction ensures that the new 911 can still emit less noxious stuff, go faster, go farther on a gallon, and, according to our sources, even weigh around 100 pounds less as Porsche rolls out more and more lightweight materials usage where we've never seen it before.




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    • 1 Second Ago
  • 4 Comments
      Dan Frederiksen
      • 3 Years Ago
      not green. although it is a battery electric add on they will probably use it strictly as a booster to the ICE and never let it run on electric power alone.
      • 3 Years Ago
      Shame on you ABG, I quote: "... is that the entire range will benefit from a KERS device, such as what was used by a couple of teams in Formula 1 in 2009 and then immediately banned by the FIA for the 2010 season as an unfair advantage, only to be allowed again for this 2011 season." You should probably fact check inflammatory statements like this. KERS was totally permissible under the 2010 F1 rules but FOTA (Formula One Teams Association) collectively agreed not to use it in part because the development cost was so high some teams couldn't afford the system. From Wikipedia's F1 2010 Season Rule changes: "Teams must homologate certain parts of the car, including the driver's survival cell, roll structures, all impact structures and the front and rear wheels,[131] meaning they cannot be modified over the course of the season without written approval from the FIA on safety or reliability grounds.[132] The minimum car weight is increased from 605 kg to 620 kg (1,334 lbs to 1,367 lbs) to better accommodate heavier drivers with KERS systems, despite FOTA's agreement not to use the system.[133]" No need to include fake news with the good news.
      Dave D
      • 3 Years Ago
      In addition, to what Race Kritik points out, NONE of the teams are using flywheel technology in F1. They are all using battery systems as they have higher energy density for the KERS...which is critically important when keeping the weight down.
        • 3 Years Ago
        @Dave D
        And they don't use a flywheel because they don't have to worry about their cars batteries lasting 3 years. I'd argue the toss about energy densities as a decent racing flywheel has a higher density, and higher efficiency (more power returned to the drive from braking). Of course racing systems sacrifice battery life in order to achieve more. They use battery systems as they can be more compact and spread.