Porsche 918 RSR In Detail Video at Detroit Motor Show 2011 Carjam TV HD

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The Porsche 918 Spyder is a mid-engined sports plug-in hybrid designed by Porsche and first shown as a concept at the 80th Geneva Motor Show in March 2010. The Spyder is powered by a 4.6 litre V8 engine, developing 608 horsepower (453 kW), with two electric motors delivering an additional 279 horsepower (208 kW) for a combined output of 887 horsepower (661 kW). It is the second plug-in hybrid car from Porsche, after the 2014 Porsche Panamera SE-Hybrid.[2] Porsche intends to manufacture 918 units as a 2014 model year starting production on September 18, 2013, with deliveries scheduled to begin in December 2013.[3] The starting price is $845,000.[4]

Porsche unveiled the RSR racing variant of the 918 at the 2011 North American International Auto Show, which combines hybrid technology first used in the 997 GT3 R Hybrid, with styling from the 918 Spyder.
The 918 Spyder is subject to numerous video games appearances, most notably in several games of the third generations of Need for Speed series. It was originally featured in the game Need for Speed: Hot Pursuit as a drivable vehicle.[10] Unlike the other Porsche cars featured in the game, it is not available in a police livery. It was later featured in Shift 2: Unleashed,[11] Need for Speed: The Run[12] (The Run only featured the RSR variant), and Need for Speed: Most Wanted (2012),[13] as well as in Real Racing 3. Most Wanted includes both the 918 Spyder's concept build on the in-game car roster and the 918 Spyder production model if the Terminal Velocity downloadable content is purchased.
The 918 Spyder offers five different running modes: E-Drive allows the car to run under battery power alone, using the rear electric motor and front motor, giving a range of 20 miles (32 km); the car can reach 93 mph (150 km/h) in this mode.[3] Three hybrid modes (Hybrid, Sport and Race) use both the engine and electric motors to provide the desired levels of economy and performance. In Race mode a push-to-pass button initiates the Hot Lap setting, which delivers additional electrical power.[8] The chassis is a carbon-fibre-reinforced plastic monocoque. Magnesium and aluminium are extensively used in the construction of the car which helps keep the 918 Spyder's weight down to 1,640 kilograms (3,600 lb).

On July 28, 2010, after 2000 declarations of interest, the Supervisory Board of Dr. Ing. h.c. F. Porsche AG, Stuttgart, gave the green light for series development of the Porsche 918 Spyder.[9] The 918 will be produced in a limited series and it will be developed in Weissach and assembled in Zuffenhausen. Porsche intends to manufacture 918 units as a 2014 model year starting production on September 18, 2013, and deliveries are scheduled to begin in December 2013.
At the 2011 North American International Auto Show in Detroit, Porsche unveiled the RSR racing variant of the 918 Spyder. Instead of using plug-in hybrid technology, power for the two electric motors is provided by a flywheel accumulator KERS system that sits beside the driver in the passenger compartment. The V8 is a further development of the direct injection engine from the RS Spyder race car developing 563 horsepower (420 kW). The electric motors each provide an additional 102 horsepower (76 kW), giving a peak power output of 767 horsepower (572 kW). The six speed gearbox is a development of the unit from the RS Spyder. The 918 Spyder is a mid-engined two-seater sports car designed by Michael Mauer.[6] It is powered by a 4.6 liter V8 engine. The engine is built on the same architecture as the one used in the RS Spyder Le Mans Prototype racing car without any engine belts.
Porsche has given performance figures of 0--100 km/h (62 mph) in 2.8 seconds, 0-200 km/h (120 mph) in 7.9 seconds and a top speed of more than 340 kilometres per hour (210 mph).[4] The energy storage system is a 6.8 kW·h liquid-cooled lithium-ion battery positioned behind the passenger cell. In addition to plugging in to recharge, the batteries are also charged by regenerative braking and by excess output from the engine when the car is coasting. CO2 emissions are 79 g/km[2] and fuel consumption is 3.3 L/100 km (94 imperial mpg/78 us mpg). http://en.wikipedia.org/wiki/Porsche_918