It's both.
Auto margins are rather small. Software margins are huge.
Anybody can make a car, but the overhead is massive. It's a very tough business.
If only Tesla has the software for Ford's robotaxis, then Tesla gets most of the profits. Only Tesla can make Ford's robotaxi viable.
Even if robotaxi never happens and Tesla is just licensing FSD to Ford, Tesla will still get most of the profit from every car Ford sells. Even if the license cost is only, say, $8K, that's a lot more than Ford makes per car and it's almost 100% profit for Tesla.
Will customers pay an extra $8K for a car that drives itself? I think they will. The cost of an EV is going to come down by more than that in the next few years. And nobody will want a car that you have to drive manually.
Like I said earlier today, this is why selling Windows was a much more profitable business than selling the PCs that Windows runs on. The value is in the software, not the hardware.
But wouldn't that price Tesla out of it entirely? If Tesla is charging so much per vehicle for an OEM to license FSD then why would the OEM bother in the first place? Tesla's pricing has to be fair and equitable or no one will take them up on licensing at all. The OEM's need to make profit to survive as well.
Remember Tesla's mission is not to make the most profits possible, it's to transition the world to EV's and sustainable living. Look at how Tesla is folding the OEM's into Supercharging, it isn't super lucrative for Tesla at all, they are going easy on the OEM's without punishing them financially. It would stand to reason FSD licensing will follow the same pattern simply because Tesla likely won't be greedy with it.
Or do most people really think Tesla will fleece the OEM's for huge profits?