The Porsche 918 Spyder is a mid-engined sports plug-in hybrid. The Spyder is powered by a 4.6 litre V8 engine, developing 580 horsepower, with two electric motors delivering an additional 243 horsepower. It is the first plug-in hybrid car from Porsche. 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. Would you drive one?