Insight: Has Volkswagen discovered the Holy Grail of carmakers?
The new Volkswagen Golf model is unveiled in Berlin in this file photo taken September 4, 2012. REUTERS/Fabrizio Bensch/Files
Volkswagen Chief Executive Martin Winterkorn poses for a photograph during the inauguration of Volkswagen's 100th plant worldwide in Silao in this file photo taken January 15, 2013. REUTERS/Mario Armas/Files