In the MunroLive first video of the Structural battery pack removal there are a number of interesting points:
My favorite single quotation was at 12:58:
Julian Sites weighed the Model Y structural battery pack at 1198 pounds. Cory Steuben then commented that competitor packs that Munro have weighed were twice as heavy, without the seats and interior that come with the structural pack.
In times past I recall estimating that Tesla could save as much as $500 per vehicle from the structural pack and the new paint shop. Even this first Munro look makes it clear that such an estimate is understated. Traditional OEM cost accounting for project planning uses a pound/ounce formula, now usually KG/G, where a change is valued according to weight.
The combination of structural battery pack, 4680 cells, front and rear gigacastings and the amazing paint shops:
geicotaikisha.com
Together present us with an unprecedented problem. There are so many huge cost, weight, labor (human and robotic) factors all being transformed that it is ludicrous to imagine how the traditional weight basis really works. It obviously does not since Austin 4680 cars are not materially lighter than are their Fremont counterparts.
Cost is another matter. Once the Munro teardown has been competed we will have very detailed comparisons between 2170 Fremont and Austin 4650. In the meantime it si already clear that Tesla is making very rapid progress in cost reduction and quality control, enough so to render historical processes of evaluation completely useless.
I will not guess how all this will look in three months, but I'm quite positive that Tesla process improvements are yielding cost reductions despite materials cost increases. Scaling all that new technology is so challenging that most of the world would not even try. When Shanghai, Grüneheide and Austin are through with the present grades we'll begin to understand.
Elon clearly is irritated that all this isn't working now is huge volumes. He'll feel better next month. So will we. As for me, I really want to run those numbers once Munro has finished!