CEO Elon Musk continues to dent the profile of the otherwise sleek automaker with his unfiltered, non-PC prattling.
The shareholder lawsuit is one of at least seven targeting Musk since he stunned investors on Twitter on August 7, saying he might take Tesla private in a $72 billion transaction valuing the company at $420 per share, and that "funding" had been "secured".
Tesla didn't immediately respond to a request for comment Tuesday on the Buzzfeed report.
The businessman - who is worth over $20 billion - apologised afterwards, claiming he had spoken in anger, stating: "His actions against me do not justify my actions against him, and for that I apologize to Mr Unsworth and to the companies I represent as leader".
"Unsworth also said I was asked to leave by the Thai govt, which is utterly false".
What other allegations does Musk make?
"You don't think it's unusual he hasn't sued me?" Musk has publicly and clearly stated that he "hopes" to be sued. "After deleting the initial accusation and tweeting an apology, Mr Musk has continued to republish his false and unsupportable accusation. Let me be equally clear in response - Musk will be sued - not because of his hopes, but because he deserves to be sued". Reuters was unable to verify the emails reported in the BuzzFeed article.
Musk has a particular disdain for short-sellers and has actively derided them and those who doubt Tesla's prospects through his widely followed twitter handle.
The cave diver, 63, helped rescue the trapped soccer team from a cave but faced criticism from Musk, when Unsworth said Musk's mini-submarine theory for rescuing the boys had "absolutely no chance of working".
He can "stick his submarine where it hurts", Unsworth said during the interview in Thailand. "He has no idea about what Musk has said".
The Drive's Alex Roy recently hypothesized that whether it's sleep deprivation, drug use, or just plain stubbornness driving Musk these days, it really doesn't matter because he believes so singularly in his own vision for electric cars.
While subsequently apologizing for what Wall Street media described as a "meltdown", the event seems to have crystallized Musk's growing suspicion that being a public company might not be the most conducive way for Tesla to reach its goals.
"The tweeting fiasco", Cowen analyst Jeffrey Osborne wrote to clients, "is likely to draw investor scrutiny on whether Elon's behavior, management style, and operational ability are enough to take Tesla to the next level". Musk had stated that the company would be producing as many as 500,000 vehicles by 2018, an estimate that even Nemak SAB found to be too high. Canaccord Genuity set a $316.00 price objective on shares of Tesla and gave the company a "hold" rating in a report on Tuesday, August 28th.