A new car emissions trial is underway in Germany, continuing the yearslong " Dieselgate " saga in which millions of automobiles from the Volkswagen Group — which includes VW , Audi and Porsche — were found to have been tested in a way that hid their actual emissions. The trial, which began in Munich in February, sees two former Development Board chairs and two leading engineers facing charges for their alleged role in the  massive environmental and business scandal that first made global