This is/was my first BMW and as well my first E/D. I was trying to squeeze it into a pre-existing vacation plan over a long weekend, Thur-Sun, to Munich for Oktoberfest. The plan was to Spend Thursday at Neuschwanstein, Hofbrauhaus Thurday night, then straight to BMW Friday morning for an early delivery, ~8 AM. Since Harms closes at 4 I was going to pick up the car early, drive to Augsburg for a nice lunch, then drive it back before they closed. Not very long, but would allow me to put ~100 miles on before leaving it behind.
Well, beer and jet lag have a funny affect on you (who knew!) and my overly aggressive schedule came crashing down on me. I didn't get to BMW until nearly noon, then I went to the wrong place, went to the plant instead of the delivery center (instructions weren't really clear there). Finally I arrived at the delivery center. It was packed. It took 2 and a half hours for my turn to come up, which I spent at the Bistro with the two friends and my wife I had brought with me enjoying a lite lunch and some much needed coffee
The actual delivery wasn't really that great, I'm assuming this was due to the fact that it was 30 minutes from closing time and it appeared they had about 5 more cars to deliver.
Net result was I had an hour to spend with the car. No problem, an hour on the A9, I can deal with that

. EXCEPT, there was bumper to bumper traffic between the delivery center and Harms due to construction. Took the entire hour just to get there. Net mileage on the car - 10.
Jokingly Mr. Behrends told me to "Get the Hell Out!" when I reported my final mileage to him. He was a good sport but warned me that he would now be forced to break my car in for me on the A-Bahn
So, the lessons:
1. Try to avoid Fridays
2. No matter how tight your schedule, allow for more than one day with the car if you possibly can. You'll appreciate yourself later for doing this!
3. Mass amounts of beer the night before, probably not a great idea
4. The delivery center and the factory are not the same thing - go to the right place
That's all I can think of for now. I'll get the car in 4-6 weeks and I'll be completely happy. (I failed to mention, but the car ROCKS!!!

) And, I'm hoping to do it all again in 3-yrs.
If this message helps anyone avoid the same pitfalls, then it's worth the long read.