First seen as a concept at the 2010 Geneva Motor Show, the 918 Spyder is a plug-in hybrid supercar that will enter production at the end of September 2013.

The new 918 Spyder is built around a carbon fibre-reinforced plastic monocoque and features fully adaptive aerodynamics and an adaptive rear-axle steering.

Porsche has announced that the production version will feature an enlarged 4.6-liter V-8 engine pumping out close to 570 horsepower.

Porsche claims that Spyder yields maximum performance with minimum fuel consumption. Under the hood it has a 500HP 4-litre V8 engine and two electric motors.

The gas-electric drivetrain offers a 3.1-second 0-60 sprint and a top speed of 199 mph. At speeds of up to 94 mph, Spyder could propel itself with electric power.

Prices in the U.S. will start at $845,000, and in Europe from €645,000 ($835,400) before VAT and country-specific charges.