Unknown speaker -- -- Analyst

Yes, you can't reverse engineer a factory.

Elon Reeve Musk -- Chief Executive Officer and Product Architect

Yeah. It's like, you know, [Inaudible]. Yeah. And as we -- so we're rapidly evolving our manufacturing technology.

So, anyway, basically, I think having a regular 25K model is pointless. It would be silly. Like it would be completely at odds with what we believe.

Unknown speaker -- -- Analyst

In autonomous world, what matters is lowest cost per mile of efficiency of that vehicle. And that's what we've done with the robotaxi.