California Accounts for 40 Percent of US Plug-In Sales By Stephen Elmer Sep 09 2014 Share this Article Tweet Thanks to stricter emissions laws than the rest of the country, California alone accounts for nearly half of plug-in vehicle sales in the US. Continue Reading... Filed under: American Electric Cars Featured Articles HybridsTags: California Vehicle Sales, Electric vehicle sales, Hybrid vehicles, plug-in vehicles, prius plug-in, Toyota