BMW X5 Concept5 Adds Plug-in Hybrid eDrive System

BMW has rolled out a new concept in the ultra-green segment, this time unveiling the new Concept5 X5 SUV. (Should that be iX5..? - Ed.)

Externally, the big SUV appears largely unchanged, with a handful of blue-accented tweaks setting this green wagon apart from the regular model. 

It's a different story under the skin however, with the Concept5 featuring a new version of its plug-in hybrid 'eDrive' system that pairs a turbo four-cylinder engine with a 70kW electric motor.