Here is some information about all this process when I spoke w/ BMW Genius just now, in case this helps anyone with similar questions.
- Usually they (Genius) have way more frequent updates than our online My Bmw tracking, which is usually refreshed 2-3 times/week, per him.
- Once the vehicle has entered production, usually we won't get individual updates just notified when Assembly is finished/completed. He LOL'd that sometimes when a car would go from paint to quality, back to paint, customers would call freaking out asking why; he said that's why there's quality control.. if there's a tiny paint or quality defect, we fix it, because we export perfection. Half my job is telling people to take a deep breath.
(He seemed like a knowledgeable and down to earth genius guy).
- Although I got quoted a completion date of 2/18 (from a start date of 2/4), but he said they're sometimes seeing just under 2 weeks. As we are sometimes seeing with your guys' orders.
- 90% (minimum) of all 3/4 series are coming from Mexico mostly at random (not entirely new news); I asked about 'xDrives coming from Germany' or specific colors, as we've seen talked about on here, and he said there is really no rhyme/reason but based on Plant/Assembly-line workflow, Germany can help supplement production. But yes confirm whether its M340, xDrive, or a certain shade of blue, 90+% coming from SLP.
- ETA usually 2-4 weeks from Mexico SLP after the completion date, due to shipping by railway, (usually) depending on if it goes to "port" in Florida, Tx, or sometimes even goes from Mexico SLP up to New Jersey then ships. So he said with my completion date being ~2/18, I could see it arrive at the dealer (at the fastest) by first week of March! Or up to the end of March... He said they are seeing mostly 2-2.5 weeks transit time for 3/4's coming out of Mexico.
Obviously our individual data points may vary. Just relaying what he informed me. Hope this helps anyone.