This is what I've been told has been happening with the production line and indirectly this would feed into the delivery schedule: The way the initial ramp up has been going is that Tesla is producing a couple of cars and then pausing the line while Elon personally inspects the batch of cars they produced. Then any issues are addressed and the line is tweaked (which might take a day or so, depending on the issue) and then another small batch of cars is produced and poured over for quality. This is a slightly different initial ramp-up in production than initially thought. (much slower at the beginning, but much quicker once all the issues are addressed up front). Doing this will insure higher quality for all the cars as the quality issues are addressed very early in the production run. Once Elon is comfortable with the quality level, the full speed ramp up should progress quite quickly. This matches what he said in the recent investors call. So it does initially delay the very early cars from their initially quoted delivery dates, but it should mean that the fast ramp-up to hit the 5000 car delivery goal should be achievable by year end. So I think the quality of the cars now coming off the line and being delivered to customers at this point is much greater than any of the cars we have seen at the Get Amped events. We will find out very soon now that cars are out in the wild and those numbers will continually increase over time.
I expect that we will see a very fast ramp up after all the Signature cars are delivered. I'm hopeful that the regular production car que will be very pleasantly surprised at how quick the delivery schedule progresses in October, November and December. In other words, the production line can blast out cars at it's maximum rate now if Tesla wanted to, but won't do so until they are very confident of the quality of the cars coming off the line. Give Elon's track record with getting problems solved, I would say that the line will be at full speed sooner than we expect and will be producing many more cars than the 20,000 a year delivery goal implies.