Porsche 918 Concept – Technical Specifications
This open two-seater is powered by a high-revving V8 developing more than 500 horsepower and a maximum engine speed of 9,200 rpm as well as electric motors on the front and rear axle with overall mechanical output of 218 horsepower (160 kW).
The V8 combustion engine is the next step in the evolution of the highly successful 3.4- liter power unit already featured in the RS Spyder racing car and positioned mid-ship, in front of the rear axle, giving the car excellent balance and the right set-up for supreme performance on the race track. Power is transmitted to the wheels by a seven-speed Porsche-Doppelkupplungsgetriebe (PDK) transmission that feeds the power of the electric drive system to the rear axle. The front-wheel electric drive powers the wheels through a fixed transmission ratio.
The energy reservoir is a fluid-cooled lithium-ion battery positioned behind the passenger cell. The big advantage of a plug-in hybrid is that the battery can be charged on the regular electrical network. A further point is that the kinetic energy is converted into electrical energy fed into the battery when applying the brakes, thus providing additional energy for fast and dynamic acceleration.
| type | Concept / Prototype Car |
| released at | 2010 Geneva Motor Show |
| engine | V8 w/Electric Motor, Lithium-Ion Battery |
| displacement | 3400 cc / 207.48 in³ |
| power | 535.4 kw / 718 bhp @ 9200 rpm |
| specific output | 211.18 bhp per litre |
| bhp/weight | 481.88 bhp per tonne |
| body / frame | Unitary CFP Monocoque |
| driven wheels | AWD |
| curb weight | 1490 kg / 3285 lbs |
| transmission | 7-Speed PDK |
| top speed | ~320 kph / 198.72 mph |
| 0 – 100 kph | ~3.2 seconds |
| combined fuel econ eu | 3 L/100 km or 78.40 mpg-us |
| emission | 70 g/km |
