TSLA ▲ +3.7% - Tesla, Inc. $TSLA -- Musk with a response to a tweet mentions a driver trying the cybercab in Austin -- Musk replies hopefully soon in Europe too Tesla shares rose 3.7% after Elon Musk responded to a social media post about a driver testing the Cybercab in Austin, indicating the autonomous vehicle could expand to Europe in the near term. The comment suggests progress toward commercializing Tesla's self-driving taxi service beyond North America, a potential new revenue stream that investors view positively. 08-SEP-2026 11:58 AM ET