A cautious view. Wouldn't your guys think TM was forced to move the delivery date estimate because the minimum time (3 weeks) required from ordering --> confirmation --> sourcing --> production to delivery? If that's the case, the 50K model S still not in the bag yet. If TM needs to hit 17K low end Q4 guidance, it represents 50% jump from Q3. Go check the EU Oct./Nov. delivery number vs. July/August in
http://www.teslamotorsclub.com/showwiki.php?title=Europe+2015+Model+S+sales. It's almost flat or at best single digit growth. To do a simple math below:
EU Q3 delivery total: 3516
Estimated Q4 delivery: 3516 * 1.5 = 5274
Q4 Oct./Nov. delivery: 2439
So December is expected to deliver 5274-2439=2835 or sth. around that number. I read from twitter that Norway only delivered 123 model S in first 12 days of December. Norway is the 2nd biggest market of Tesla and largest market in EU. So I leave your guys figure out where is the delivery growth come from instead of TM's prediction.