AAP: Australian engineers have developed a plug-in hybrid electric car that not only generates power but can pump it back into the grid, potentially reducing running costs. In coming years, car giants Toyota and General Motors will mass produce plug-in hybrid cars, but researchers at the University of Technology Sydney (UTS) have gone one step better, developing what they call the vehicle-to-grid (V2G) prototype. Taking a standard 2006 Toyota Prius, engineers at UTS converted it to …