A worker stands on a scaffold lift, under a giant VolksWagen logo at VolksWagen's original headquarters building, now under renovation in Wolfsburg, northern Germany, on September 30, 2015. German auto giant Volkswagen shifted up a gear Wednesday in its plans to recall millions of cars fitted with pollution-cheating software as it boosted efforts to find the masterminds behind the scam. AFP PHOTO / JOHN MACDOUGALL (Photo credit should read JOHN MACDOUGALL/AFP/Getty Images)
