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Production version of this 918 "coupe" to bow in 2013

Porsche wowed automotive enthusiasts when it unveiled the 918 Spyder nearly a year ago. Porsche made those who can actually afford the vehicle salivate when it announced that it would actually make a production version of the vehicle.

Today, Porsche revealed its racing variant of the vehicle: the 918 RSR. The 918 RSR takes the best of the 918 Spyder (its sexy shape, albeit in coupe form) and combines it with the flywheel-based hybrid system found in the 911 GT3 R Hybrid.

Like the 918 Spyder on which it's based, the 918 RSR uses a 3.4-liter V8 that develops 563hp at an incredible 10,300rpm. The vehicle also features a 36,000rpm kinetic energy recovery system (KERS) flywheel actuator that stores energy generated during braking. With the touch of a button, the driver can call upon two electric motors (one in each front wheel) that use that stored energy to give a momentary power boost (8 seconds on a full charge) to 767hp.

The electric motor also provide torque vectoring for improved handling and steering response.

According to AutoWeek, Porsche has plans to produce a version of this concept for the racetrack, and a production model of the 918 Coupe (minus KERS) will join the 918 Spyder in 2013.





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By gstrickler on 1/12/2011 1:08:44 PM , Rating: 2
Without a dam, the water would just flow at it's own rate, there is no energy storage. The energy available is dependent entirely upon the instantaneous water flow. That's not storage.

Same principal applies to the mountain lake. If it's not available immediately/on-demand, then it's not storage in any useful sense because it's only available at the natural instantaneous flow rate.

While it's in the lake (natural or created by a dam), it's potential energy. Until that potential energy is converted to kinetic energy by allowing it to flow, it's useless because we can't directly convert potential energy to actual energy, we must first allow gravity to convert it to kinetic energy. It's right there in the name "potential energy", it's not energy yet, only potential energy.


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