I was a little kid the last time I dreamt about flying cars. Then I grew up and realized it's a silly idea.

Also if it was just a demo for space mining, why is it marketed as a car for consumers and why can I buy a $250K reservation to maybe (!) buy one for an unknown price and with an unknown set of features at an unknown point of time in the future?

I think it's very simply just a scam to extract money from Elon's fans.