Porsche will actually release the 918 Spyder. The manufacturer has finished the first prototype.

The powertrain includes a 4.6 liter V8 with 570HP (419 kW) and two electric motors – a 109HP (80 kW) on the front axle and a 122HP (90 kW) electric motor on the rear axle. This means a combined power of 770HP (566 kW). 0-100 km/h in 3 seconds and a top speed of 325 km/h (202 mph). This performance comes at decent "price" – 3.0 litres per 100 km (94.1 mpg UK) with CO2 emission of 70 g/km. Furthermore, thanks to a 6.8 kWh lithium-ion battery, the model can travel more than 25 km (15.5 miles) on electricity alone at speeds up to 150 km/h (93 mph).

"What we are doing with the 918 Spyder is redefining driving fun, efficiency and performance," said Wolfgang Hatz, Member of the Executive Board Research and Development of Porsche AG.

Porsche is breaking yet more new ground with the technology demonstrator with spectacular solutions such as the full carbon fibre reinforced plastic (CFRP) monocoque with unit carrier, fully adaptive aerodynamics, adaptive rear-axle steering and the upward-venting "top pipes" exhaust system. In the process, the 918 Spyder is offering a glimpse of what Porsche Intelligent Performance may be capable of in future. The 918 Spyder will go into production at the end of September 2013 as planned, with the first customers receiving their vehicles before 2013 is out.

Porsche 918 Spyder Prototype

Porsche 918 Spyder Prototype, 1 of 6
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Source: Porsche