Photo: GM Not a Plug-in Hybrid Like the Volt.. More Like the EV2 So far, GM hasn't been all that enthusiastic about electric-only vehicles. They made the EV1, but it ended up in the junkyard. The Chevy Volt can run on electricity alone for about 35 miles, but there's a gasoline engine that acts as a 'range extender'. That's why the Spark EV that is being announced today is special: It will be the first GM car in over a decade to run on batteries alone. Read on for mo...Read the full story on TreeHugger