Mine is on order since 10/10 with the tech package. Still no build date. I hope it's not the case because I really want mine before Christmas.

That said it's not so unusual in the universe of Just In Time inventories for some glitch in the supply chain to hold things up. There are thousands of parts in a BMW, after all, and their supply base is likely spread all over the world. Just one supplier with a quality problem that propagates far enough into the chain before it's detected could cause a serious shortage.

Not in the auto industry, but I've been involved in cleaning up my share of supply chain disasters.