If you look through some of the other "vehicles" this guy has made, he holds several patents on VTOL "cars" for either 1 or 2 people, stretching all the way back to the mid 60s.
This current one runs on pump gas, is darn near quiet enough now to operate in public, and if his previous projects are any indication, he will pass all the FAA required testing with flying colors (no pun intended lol). He already has buyers lined up for the first few at 1 mil per, but wants to mass produce them.