After Tesla owner Elon musk purchased Twitter, top car brands pause advertising on the platform.

Elon Musk is very rich mainly because of his stake in Tesla, the electric car company.
After his takeover, some of the top car brands have stopped advertising since they feel that their advertising data may get misused.
Some of the top brands are
Ford
General Motors
Volkswagon
There are also other well known brands which are stopping advertising, increasing his loss further, reducing revenues