U.S. passed half a million plug-in electric-car sales in September
Modern plug-in electric cars first became available in the U.S. in December 2010, when the Nissan Leaf and the first-generation Chevrolet Volt went on sale. Shortly after that, in his 2011 State of the Union address, President Barack Obama set the goal of putting 1 million such cars on U.S. roads by 2015. Regrettably, that goal was not reached...