On September 4, Tesla Motors declined 3.21% in pre-market trading to $364.86 per share, with turnover of $326 million, giving back a significant portion of the prior session's 5.42% rally that followed the Cybercab launch event in Austin, Texas.

The pullback comes as the U.S. National Highway Traffic Safety Administration (NHTSA) initiated an audit inquiry into approximately 1,000 Cybercab units sold in the U.S., reviewing the certification process and technical data Tesla relied upon for the vehicle, which lacks a steering wheel, pedals, and rearview mirrors — features typically required under federal safety standards. NHTSA confirmed it is in contact with Tesla and is evaluating the situation.

Separately, analysts flagged that the Cybercab event delivered limited new information beyond what was already known. Only 45 Cybercabs have been registered in Texas according to state filings, and the operational fleet in Austin remains under 100 vehicles. Barclays noted that scaling and cost reduction remain the core challenges, while Morgan Stanley previously indicated that failure to demonstrate meaningful fleet expansion could weigh on the stock near-term.

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