Business Green: By 2015 the auto industry will have put 3.2 million electric and plug-in hybrid vehicles on the world’s roads, according to research released this week. The study from analyst Pike Research, entitled Plug-in electric vehicles, predicts a 106 per cent compound annual growth rate for the vehicles over the next five years, initially driven by demand in the small consumer vehicle category. Dave Hurst, senior analyst at the organisation, predicted that small electric cars will act …