"Saloon" as a British-ism for "sedan" is a new word for me. As for the article, likely needing to "raise additional capital during the second half of 2019" is a far cry "uncomfortably close to the truth" of totally bankrupt.
[1] http://www.fullychargedshow.co.uk/tesla-model-s-shooting-bra...
https://jalopnik.com/this-is-why-we-call-cars-sedans-limousi...
I believe it derives from the saloon ( main passenger accommodation ) of a bus, versus the open deck of a charabanc. In turn borrowed from the maritime sense of a large weather-protected cabin for passengers.
In British car terms it indicates a car with 'separate' accommodation for the passengers i.e. not integrated with the boot / trunk as found in a hatchback.