> I would be shocked if they were able to maintain those margins.
I wouldn't be. They have fundamental and very broad patents on important things like:
* Pre-heating the battery on the way to a charging stop (enables the battery to accept faster charging without damage on road trips)
* Using motor waste heat for battery heating (increases range while use the above strategy)
* Dynamically adjusting charge rates due to real-time battery conditions (enables charging faster)
Those patents don't expire until the mid/late 2030's. That allows Tesla to force competitors to either pay a licensing fee or use more-expensive workarounds, like different battery chemistries, to match the battery range and charging rate. Either way, it means Tesla is likely to have larger margins than competitors.