If you want to make a splash in a new vehicle segment, you have to go big. Porsche's first-ever hybrid model, the 918 Spyder, does just that. This plug-in hybrid (PHEV) was certainly not designed to save fuel, boasting hypercar performance from a combination of a gas V8 and electric motors. A limited production run and a price approaching six figures means this is a car you'll very like only see in pictures.