[Porsche-O-Phile]

Good concept. Actually great concept. The limitation is still crappy chemical battery technology that hasn't changed or advanced appreciably since about 1930 or so. . .

Electrical energy storage is one area where technological advances are long overdue. I read a while back about some company that is using NASA-based technology in mag-lev-ed flywheels in evacuated cannisters. Electrical potential is used to accelerate the flywheels which spin at many hundreds of thousands of RPM (limited by tensile strengths of the flywheels themselves - go too fast and they explode). I haven't heard anything about this being made feasable to replace conventional batteries for something like an electric car. . . yet. . .