Accurate Q4 financials estimates based on the P&D report are hard - but robust lower bound estimates are much easier:
- AWD and MR % can be estimated from AWD VIN registrations
- But Troy's survey recorded an ASP reduction from $60k to $57k - that can be used too,
- M3 gross margin: we can conservatively assume the ~20.5% cash margin from Q3. It was very likely better, but this would be a safe number to use.
If such a conservative estimate still results in a good quarter, then the ER is likely to be even better.
Plugging that into the deliveries report is 4th grade math, quite literally.
Note that it's also possible that Q4 deliveries will not be decisively good, but the ER is still positive. In that case the P&D report probably won't have a decisive effect, only the ER will.
My point: Q4'18 is the first ever Tesla production and deliveries report which has a real chance to be highly predictive of the direction of the earnings report. I.e. the stock price
might have a stronger reaction than usual (positive or negative).