The Porsche 918 Spyder (known internally as Project XG10) is a mid-engined concept sports car designed by Porsche and first shown at the 80th edition of the Geneva Motor Show in March 2010. It is the first plug-in hybrid car from Porsche.[2]The 3.4 litre V8 engine (500 hp/370 kW) is a development of the engine used in the RS Spyder Le Mans Prototype racing car. This is supplemented by three electric motors delivering an additional 218 horsepower (163 kW). The transmission is a 7-speed gearbox coupled to Porsche's own (PDK) double clutch system delivering power to the rear axle. Two electric motors drive the front wheels directly through a fixed...