Tesla's share price is currently being influenced by the company's robotaxi expansion in Austin and its recent reveal of a flying Roadster. The growth of Tesla's Cybercab fleet to over 300 vehicles, along with plans for expansion in Dallas, indicates progress in its autonomous driving project. The Roadster reveal has sparked investor interest, with analysts noting it as a significant technological milestone and a potential clue to a collaboration with SpaceX. These developments are contributing to market optimism and could impact Tesla's valuation.