I agree with this, if the MR became the SR, then that blows the competition (is there any) totally into the weeds.
I believe there will be an SR. It isn't that Tesla couldn't just say, "No SR, its the MR". But doing so doesn't seem likely for two reasons. First, Musk would be retracting the SR and, as an essentially honest person, I can't seem him doing this. Second, there's an easier yet equivalent option, just re-badging the MR as SR. That way the SR stays part of the long announced plan.
But I don't think that will happen either. Whether or not you believe the new assembly line has to do with the SR battery pack it
is certain that the SR pack has been designed and it makes sense to do so. The MR is a partially filled LR pack which is suboptimal, but acceptable as a stopgap. It really makes no sense for Tesla to throw away all of the design work for a proper SR battery pack.
In my opinion, the MR will most likely be retired because it was just a stopgap so when it is no longer needed there is no reason to keep producing it. Like the 75S it will just be retired. Of course, that's only my opinion, but it fits with the facts and past behaviors. The only way I can see the MR being retained is if Tesla does something with the line to increase differentiation.
For example, what if the SR were released at $30k or even $25k? Ignoring for a moment the margins of such an endeavor, it is obvious that doing so would greatly increase the addressable market and thus support the mission by acceleration EV adoption. I think it is clear that if Tesla could accomplish that they would. And they have already dropped the MR with PUP to within spitting distance of $35k SR + PUP so it is clear that they
might be able to keep sufficient margin using an optimized SR pack to go below $35k.
By introducing a $35k SR including PUP they could use the premium margins to make up costs until advancements (*cough* maxwell *cough*) could be brought to bear to bring production costs low enough to maintain margin at a lower price point.
[edit to say: the main argument I can see against a lower priced SR is the potential of osborning sales as people wait for a lower priced model. While possible, I think that the same is true given their recent price drops — I couldn’t advice someone to buy a Tesla right now given the real possibility of further price drops or hardware improvements (e.g., HW3). So while it would be a problem, I’m not sure that it would be
that much worse than what they already face]
With the above in mind, this is what I see as the plausible possibilities:
- SR dropped in favor of keeping MR (as noted above, I don't see this happening)
- MR renamed SR (requires ditching the SR pack and keeping a hack-pack, don't see this happening either)
- MR dropped in favor of SR (timing of drop being before, at, or after SR intro as best suits Tesla)
- SR introduced at a price point below $35k (could be done initially at $35K including PUP)