The SEC should have a chat with Elon about that. He already put one of his cars in space, and owns a company trying to get to Mars. That puts it at about 80% joke in my mind.
I’m not so sure. As Elon said “We’re going to be using the same alloy in the Starship rocket and in the Cybertruck”. The Tesla truck itself might be a way to subsidize the SpaceX rocket development (or vice versa). It sounds like technology between the two entities is being shared already.