BMW has revealed a new high performance plug-in hybrid system, dubbed Power eDrive, with an output of 670 horsepower. Revealed in a 5-Series GT, the Power eDrive plug-in hybrid system consists of a company’s new 170kW (228 hp) turbocharged 2.0-litre four-cylinder direct injection gasoline engine and two electric motors borrowed from the i3 and beefed up […]