[rootusrootus]

They were not losing money on each sale, that's silly. Your article is counting the entire EV R&D budget and extrapolating. For every Lightning they sold, the margins improved. They just did not sell enough of them to make the overall venture profitable.

[nomel]

Well sure, but that's the only possible way to lose money: costs are more than profit from sales. See "profit margin". R&D is a cost that can't be avoided. In this case, that cost was so much more that they're cancelling the program.