Mark Phelan:

In Europe, automakers including Volkswagen, Opel, Peugeot and Renault-Nissan are all either considering structural changes or facing a crisis
 The European auto industry is in turmoil as it prepares for the Geneva auto show in March.
 Automakers would rather be talking about sleek new vehicles and exciting technologies, but corporate drama will loom large.
 Here’s an overview to help you recognize some of the players and their potential roles: