Is it? Do people buy a $100K Tesla because the same owner owns a rocket company? Why? I’ve never met anyone who considered a Rolls because the company used to build aircraft engines

Rolls definitely have a prestige factor due to their aircraft engines. And personally when I see Tesla hardware and tech I admire the level of engineering that goes into it and feel that part of the reason it's so good is because there's many shared competencies between the two companies

You know Rolls-Royce the car company and Rolls-Royce the jet engine maker are difference businesses - split apart in 1973

Indeed, Rolls-Royce cars are made by BMW.

Not sure if you are serious. Becuase, yes, that is actually part of it.

What? SpaceX and Tesla are completely distinct companies. What you're saying here is somewhat insulting to the folks at SpaceX who are actually responsible for creating the Falcon Heavy.

They're very publicly tied together by the cult of personality around Ol' Musky. I don't think it's a stretch to say that the image of Tesla as a whole is positively affected by this connection (and I don't see how this is insulting to the Falcon Heavy team).