Plug-ins poised to be Europe's top electrified drivetrain

Plug-in hybrid cars are forecast to outsell standard hybrids by 2019 and reach 1.2 million sales annually in Europe in 10 years. The rapid rise will come as automakers such as BMW, Volkswagen and Volvo launch more and more models that can travel emissions free at least part of the time so they can meet tougher European CO2 rules that start to take effect in 2020.