This month at the Frankfurt Motor Show, the world’s fastest plug-in hybrid vehicle, the Porsche 918 Spyder, is set to officially debut. It will also be one of the most expensive dual-drive vehicles on the market, costing $845,000.
The mid-engine two-seat sports car is made primarily of carbon fiber, and its 4.6-liter V-8 produces 608 hp at a stunning 9,150 rpm. Power from that engine is delivered to the rear wheels via a 7-speed dual-clutch transmission.
Two electric motors, one on each axle, are powered by …