Detroit carmakers warn of $5bn commodities shock due to Iran war

detroit's big three automakers are staring at a $5bn cost hit from rising commodity prices linked to the iran conflict. the warning covers everything from aluminium to plastics and paint — key inputs for every vehicle they build. the sector is exposed across the board. higher energy costs push up raw material prices, and the supply chain for specialty chemicals and metals is tightening. the $5bn figure is an early estimate, and it could climb if the conflict drags on.