epa04943358 The logo of German car manufacturer Volkswagen in front of a Volkswagen retailer in Hanover, Germany, 22 September 2015. German carmaker Volkswagen on 21 September 2015 issues a profit warning for the third quarter in the wake of the scandal surrounding manipulated exhaust tests in the US. Some 11 million cars worldwide are affected by the emissions-cheating software, Volkswagen said. EPA/JULIAN STRATENSCHULTE