Musk told users to ask Grok Bot to scrub their phone numbers from spam lists.
Analysts say the Roadster demo puts a Tesla and SpaceX merger back on the table.
Tesla's Roadster uses fans, active wings and cold gas thrusters to create grip at any speed.
Tesla's Roadster comes in Performance, Thrust and Rocket versions, with a claimed 0-60 under 0.59 seconds.
