> Wild that they devoted so much effort to an economically completely infeasible model. I wonder if the combustion version will even break 3 figures sales.

I'm not a Musk fanboy by any stretch of the imagination but this was clearly done as a marketing stunt to drum up hype about the street legal roadster. I didn't even watch the announcement but now everyone in my friend circle is talking about it because of the rocket engines. That's just called effective marketing.