And of course Tesla is not really profitable as in the quarterly revenue, but according to their statements, they do get above 20% profits from selling cars which get eaten up by their aggressive reinvestments - the company is growing by about 50% year over year.
The same goes for BMW. They recently announced they expect lower profitability of the entire make due to cost of production of the electric cars.[2]
Each Fiat 500e is sold with $14000 loss[3].
Besides, I'd argue that Tesla make money on their cars not because they are in a "profitable segment of electric cars", but because they are in profitable segment of luxury sedans (and SUVs). Sure, all-electric is part of their appeal, but they are no more profitable than luxury sedans with combustion engines.
[1] http://www.torquenews.com/2250/nissan-leaf-now-profitable-so... [2] https://www.bloomberg.com/news/articles/2016-11-04/bmw-third... [3] http://jalopnik.com/sergio-marchionne-doesnt-want-you-to-buy...