OK, so I think everyone who is remotely unbiased agrees that Tesla needs to raise capital, not just raise capital but via an equity offering (even if its heavily discounted, which it would be). Even if you buy that they will be CF+ in Q3 and maybe Q4, you have to agree it wont be by much, certainly not enough to fund the ridiculous amount of projects they claim to be planning, and probably not positive GAAP income either.
The most likely scenario is that they won't have positive GAAP income (maybe CF+ for 1 Q from accounting trickery, but not GAAP income) in any Q of 2018.
But let's pretend they have to show GAAP profitability in order to raise capital, just pretend (like say, for a shelf registration). Also, they need to show it before running out of cash. If that was the case, what do you do?
You pull as much demand forward as possible and combine that with your highest margin sales, and dump everything into a single quarter.
Q3 will be the period for the highest margin M3 backlog, the performance AWD LR versions, I cant imagine there will be huge demand for a 78k M3 going forward so the backlog might be the only chance to really spike 1 Q with a material amount of them. Next, in order to pull as much demand forward as possible for S&X they actually NEED Q3 to be the last quarter for the FIT credit. It also is conveniently right before some major competition comes to the plate, so having the last quarter in Q3 might actually create more demand than it would in Q4.
By aligning both of these things there is actually a fighting chance to show GAAP profitability and MAYBE get a shelf registration to issue equity and keep the story alive.
It's just a theory, but if they sell the 200k car in Q2, give me a better reason why than what i just laid out?