==Acquired by Tesla, who remains a major supplier of residential solar panels.==
Tesla bought Solar City for $2.6 billion in 2016. In 2019, they targeted 1,000 installations a week. In 7 years, Tesla has installed a total of 3,000 solar systems, getting to about 20 installations a week. Add in the fact that he purchased the company from his own cousins and the story looks worse. [1]
==Still a company.==
It is still an existing company, but that doesn't make it a success. Founded 7 years ago, has built one actively used tunnel. They also had to change the entire idea (it's actually just Teslas driving underground).
[0] https://en.wikipedia.org/wiki/Thud_(media_company)
[1] https://www.cnbc.com/2023/03/30/tesla-has-installed-3000-sol...