Tesla shares fell 5.92% on Friday, wiping about $88 billion from the company's market value and reversing a 5.4% gain in the prior session, as its Cybercab rollout drew regulatory scrutiny and a muted Wall Street response. The Austin presentation was limited to invited guests, was not livestreamed and took place without Elon Musk. The National Highway Traffic Safety Administration is auditing Tesla's self-certification process and technical data for roughly 1,000 Cybercabs. The two-seat robotaxi omits a steering wheel, accelerator pedal, brake pedal and conventional mirrors, and Tesla has sought to deploy it without a federal exemption that generally limits manufacturers to 2,500 vehicles annually. Tesla began commercial Cybercab rides in Austin on Sept. 3, 2026, within a geofenced service area, and has extended its autonomous ride service to Dallas and Houston. Analysts at Wells Fargo and other banks said the event left unresolved questions over pricing, production, regulation and early service issues, while RBC Capital Markets retained its buy recommendation. JPMorgan projects a Tesla robotaxi fleet of about 9,000 vehicles by the end of 2027, and RBC forecasts about 40,000 Cybercabs in the U.S. market by 2030.