The height of the steps increased from 500 to 1000 and now to 2000 in y-axis. And in x-axis, the length shortened from 6-7 weeks bwteen 500-1000 to 4 weeks between 1000 to 2000. I don't know how long the current step at 2000 will last. If the exponential were to hold, I think the next step should occur significantly quicker than 4 weeks, maybe 2-3 weeks, and the height should double again to close to 4000. That would mean that the current range of registered VINs up to 3926 should be exhausted very soon, and we should see Tesla register more VINs in the next 1-2 weeks. I even think it's a little weird that Tesla hasn't registered more VINs already.
I also have a WAG that Fremont factory floor space allows Tesla to stage parts and build ~1000 cars in a batch. If the next step increase in y-axis is significantly larger than 1000, I have no idea how Tesla would batch the parts and assign VINs to WIP cars/parts.
So both in terms of VIN registration and build batching, I think we're entering unfamiliar new territory. It's unclear what pattern VIN sighting will show in the coming weeks. The only thing I can say for sure is if the exponential holds then highest VIN sighted should start mushrooming very quickly from here on out.
Let’s not forget that Tesla said that they would build 10% less S/X in Q4 compared to Q3 due to reallocation of the work force to M3. I doubt that that 10% has been used up: not enough M3 built, and no signs of less S/X production.
That means that the last 1 to 2 weeks of q4 there should be a big push to produce a lot of M3, and maybe even a production stop of S/X to get to 10% less production, allocating the entire workforce to M3, since the battery bottleneck should be solved around this time.
Tesla said nothing about Q1, but as production of M3 ramps a lot of that workforce may remain allocated to M3 production.
A production stop of S/X would also ideal for retooling for an S/X refresh.
It would also totally be the usual Tesla style to do a big push of M3 production the last week of Q4, report relatively/unexpectedly high M3 production numbers, and deal with the quality issues later in the service centers.