WOLFSBURG, GERMANY - APRIL 28: Matthias Mueller (R), CEO of German automaker Volkswagen AG, and Jochem Heizmann, head of Volkswagen's China division, arrive at the company's annual press conference on April 28, 2016 in Wolfsburg, Germany. Volkswagen is facing high costs and stiff penalties, including the possible buyback of up to 500,000 cars it sold in the USA, as a reult of VW's diesel emissions scandal. (Photo by Sean Gallup/Getty Images)
