The auto industry keeps getting hit by supply constraints at a time when it is making some of the biggest transitions in its more than century-long history. The war in Iran could be just the latest of those issues. Though the region is not a major maker of automotive parts, it does produce key resources such as oil and aluminum. About 20% of the world's oil travels through the Strait of Hormuz , according to the U.S. Energy Information Administration, a major shipping artery that is bordered on