https://www.reuters.com/article/volkswagen-audi-ceo/audi-ceo-sees-chip-shortage-as-perfect-storm-but-will-get-through-it-idUSKBN2GU0RY >Premium car brand Audi, Volkswagen's biggest profit contributor, has to troubleshoot on a day-to-day basis to tackle an ongoing shortage of auto chips, its chief executive said.