The battery can be charged either by external power sources or by the TDI engine while the vehicle is in motion.

ENGADGET: VW unveils CrossBlue plug-in SUV with iPad mini headrests and 85MPGe efficiency (eyes-on)

So, although the new car in the advertisement may look like the old one, the external form conceals a number of significant changes to the engine.

ECONOMIST: The science of selling

But in the long run, creating an advanced system for understanding external big data flowing in from hundreds of systems and recognizing patterns and important events will be the engine of disruption.

FORBES: How External Big Data Opens a Disruptive Frontier for Business Intelligence