The place for hybrid technology, it appears, is in high-performance sports cars. As evidence, I submit the Porsche 918 Spyder plug-in hybrid concept that is being shown at the Geneva Motor Show.Porsche says the 918 Spyder concept is capable of lapping the Nordschleife of Nürburgring in less than seven and a half minutes, faster than even the Porsche Carrera GT. The concept is capable of hitting