Plug-in Hybrids

140 mpg! Yeah, I want one.

"While a standard Prius gets an EPA-estimated 60 mpg city/50 mpg highway, the expanded electric power of the EnergyCS plug-in Prius pushes mileage to well over 100 mpg, with several testers clocking more than 140 mpg on prototypes. "You might forget what it's like to be at a gas station between fill-ups," Nortman said. "It's pretty neat only having to fill up once a month. It's quite a different driving experience."

read full story at yahoo auto's green center article: