I think we now have the pieces to put together a very clear and simple rationale for the new "60" with the locked 75 kWh battery.
from RBC (via Barron's)
"Tesla seems to have made progress toward 2,000/week production run-rate. Model X production run-rate improved but still appears to have some challenges requiring
a lot of man hours at final assembly. However, we believe
Model S supply has improved (now has capacity of 1,500/week) which explains timing of 60kWh introduction. Tesla indicated plant was running close to 50/50 split of S/X, but by our count on the final assembly line (an admittedly limited sample size) we would put mix at closer to 60-65% Model S…"
Tesla is Confident It Can Build More Cars. Should You Be?
so, as I understand it,
Tesla made a very sound move to defer the goal of a roughly 50/50 S and X split. rather than push the Model X to ~1K per week by mid-year, they can slow that ramp by moving S demand well over ~1K per week with the 60.
think about what this accomplishes,
- a more rational, long-term oriented approach to improving X production, than "we need to be at ~1K/week last month!"
- a more manageable X production rate means reducing the number of new X owners who receive cars with quality issues. this helps future X demand by turning the tide on the unfavorable word of mouth on X quality.
- slowing down the rate Tesla runs through the backlog of X demand (see above, hopefully clear improvement in quality will help X demand get towards Model S levels Elon had expected)
- likely as good or better financials... yes, the S60s are lower margin than an S75, but, an S60 that "replaces" an X in the 2K production per week goal is very likely as or more profitable than that X. beyond the fact that we know X is just months into volume production, the RBC note specifically said these X are "requiring a lot of man hours at final assembly."
I realize some S60s are replacing S75s... it's not perfect, but I think the basic point, and what is likely mainly happening is the new S60s picking up the slack to allow more realistic (and less margin draining) X production levels. of course, as has been discussed here plenty, to the extent S75 sales go to S60s, some of that lost potential profit will be recovered by some owners deciding to unlock the full capacity of the battery, and Tesla doing the same for 60s that come into the CPO program.