Was thinking about that idea of Tesla selling skate boards to OEMs, which would be brought up from time to time.
Here is why I think it would not happen.
Remember Elon said Tesla is very open for other car company to use Supercharger Network, as long as they don’t have outlandish engineering requests.
What he didn’t say, is he probably received such requirements before, and they were steps backwards instead of forward. Tesla don’t have time for those BS, that’s the reason there is no other cars on Supercharger so far.
If Tesla ever try to supply skate board, same would happen:
OEM: Your motor controller should work with our instruments cluster.
Tesla: R U still in last century? Here is our 15 inch and MCU, use it.
OEM: How about the MobileEye suit we got from our high-profile partnership?
Tesla: U kidding? The MCU have FSD chips already.
OEM: At least you need to support our smart headlights and 24-way seats from our trusted suppliers.
Tesla: What? They have their own computers? What’s this weird protocol they talk? Could you just use ours?
OEM: How about the door locks and wipers?
Tesla: ...
The OEM would probably end up only providing the body-in-white, and they would cut every corner to make them as cheaply as possible, while it barely gets a 5 star rating.
So, if Tesla ever have the extra cell capacity, they would be better off build more factories to make more cars themselves.