The dealers also have an inverse incentive to sell them so one has to go way out of their way to purchase an electric from the legacy manufacturers. It's a classic disruption case against entrenched players who refuse to adapt. The only one making a real effort is VW and they're currently paying dearly for it.
All that said, Tesla also doesn’t build and sell cars profitably. Selling credits is the source of their profits.
EVs are not disruptive in any well-defined sense of that word. They are more expensive and do not create demand against non-consumption of automobiles. The disruptive electric mobility option is the explosion of personal form factors such as ebike, scooters, and the like.
GAAP gross margin is 21%. They're making excellent profits on their cars.
So as a simple matter, it helps to double check the reported gross margin against EBIDTA. And with that measure, my comment stands: Tesla’s reported profits depend on continuing to sell regulatory credits.
Pass a realistic carbon tax and see what happens.