By dinosaur companies, you mean Tesla and Elon Musk
Also check the same for say a Toyota
You say that like it's an advantage while it's really the opposite. As a car buyer I'm only looking at cars their manufacturer plans to fully support over their lifetime. That rules out new, unproven manufacturers as well as the ones with proven bad support.
Support-wise, trying owning an older model of Tesla like a do and you’d know that your statement cannot be further from the truth, my car bricked several times after a software update and getting repairs done gets met with “oh that’ll take __ to get parts”
...because they don't do model years? Most cars are like that too, except they increment the model year annually, whether or not there are substantive changes.
Their battery and charging technology is impressive and their supercharger network gives them a moat, but not enough of a moat. A concerted federal effort would quickly erase it, and that not happening yet is mostly down to incentives.
It's a premium product. Whether due to brand, features or something else, it's undeniable that Tesla was doing something right vis-à-vis BYD. (That said, they've been losing their edge since even before Musk's recent fuckups [1].)
[1] https://cnevpost.com/2025/09/08/tesla-sells-57152-cars-china...