When the first buzz about Tesla started, I assumed they'd found some new battery chemistry & that this was a big deal. Then I found out that, no, they just used "COTS" cells … lots & lots & lots of them to the point that some of their vehicles look like there is a huge slab of cells under the passengers … because there is a huge slab of cells under the passengers.
Downhill from there, of course, esp w/"FSD".
Now it turns out they don't even know how to make decent cars at all.