You state that Michelin could
You state that Michelin could have chosen anywhere to put this new plant, and presume that this in some way means something because it's 40 minutes from BMW. However, you ignore the fact that it's even closer to several other Michelin factories, its North America R&D facility and its North American headquarters, which by the way were all present before BMW ever built its manufacturing presence in SC. So given this, it's much more likely that the site was chosen due to its proximity to their core base (located in the same county) than their proximity to BMW.