Engadget: Saab announced it was working on an all-electric version of its 9-3 wagon late last year, dubbing it the ePower. Now we're learning what's driving it. The vehicle will be powered by a 135kW UQM Technologies PowerPhase system, an equivalent of 181hp that will propel the car to 60 in 8.5 seconds -- no Huayra but pretty peppy for an EV.