The big advantage of a plug-in hybrid is that the battery can be charged on the regular electrical network.
The energy reservoir is a fluid-cooled lithium-ion battery positioned behind the passenger cell. The front-wheel electric drive powers the wheels through a firm transmission ratio. Power is transmitted to the wheels by a seven-speed Porsche-Doppelkupplungs-getriebe also feeding the power of the electric drive system to the rear axle. The V8 combustion engine is a further development of the highly successful 3.4-litre power unit already featured in the RS Spyder racing car and positioned midship in front of the rear axle, giving the car the right set-up for supreme performance on the race track through its good balance. This open two-seater is powered by a high-speed V8 developing more than 500 bhp and running at maximum speed engine of 9,200 rpm as well as electric motors on the front and rear axle with overall mechanical output of 218 bhp (160 kW). The Porsche 918 Spyder with plug-in hybrid provides the performance of a thoroughbred super sports car on fuel consumption of just three litres/100 kilometres in the New European Driving Cycle, equal to a CO2 emission rating of 70 g/km. The highly innovative 918 Spyder concept car combines Porsche’s Intelligent Performance technology, high-tech in motorsport, and classic but modern design to make a truly convincing statement. This trio – made up of Porsche’s new Cayenne S Hybrid SUV with parallel full-hybrid drive, the 911 GT3 R Hybrid racing car with electric drive on the front axle and a flywheel mass battery, and the two-seater high-performance 918 Spyder mid-engined sports car with plug-in hybrid – clearly demonstrates not only the great bandwidth of this new drive technology, but also the innovative power of Porsche as a genuine pioneer in hybrid drive. The 918 Spyder is one of three Porsche models with hybrid drive making their world debut at the 2010 Geneva Motor Show. The 918 Spyder prototype combines high-tech racing features and electro-mobility to offer a fascinating range of qualities: An emission level of just 70 grams CO2 per kilometre on fuel consumption of three litres/100 kilometres (equal to 94 mpg imp) truly outstanding even for an ultra-compact city car, on the one hand, combined with the performance of a super sports car and acceleration from a standstill to 100 km/h in just under 3.2 seconds, top speed of 320 km/h (198 mph) plus, and a lap time on the Nordschleife of Nürburgring in less than 7:30 minutes, faster than even the Porsche Carrera GT, on the other. Buyers will be queued up around the block if (or more likely, when) this goes into production.
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Under those curvaceous lines hides a 500 bhp V8 plus three electric motors totalling 215 bhp offering a wickedly fast 0-100 km/h time of 3.2 seconds, a top speed of 320 km/h (198 mph) and it's already done a lap of the Nordschleife Nurburgring circuit under 7:30 minutes, which is faster than even the Porsche Carrera GT. Just unwrapped at Geneva is this extraordinary Porsche 918 Spyder concept car, a mid-engined two-seater combining supercar performance with just 70 grams CO2 per kilometre emissions and a fuel consumption of 3.0 litres/100 kilometres (94 mpg imp).
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