The car didn't fly, it fell slowly. It also jumped briefly. There is more than enough propellant for that.
The real issue is that the gas tank is then depleted and takes hours to fill, and this will never be legal anywhere.
Similarly the fans that keep it upside down are nothing new. Fan cars were banned from Formula 1 racing in the 1970s as they shoot road debris out of the back of the car. This will never be road legal anywhere.
So you are left with the no fan, no jet version of the car as the only one that will ever be driven on the road. Given that the 2020 roadster never appeared after 9 years, I wouldn't hold my breath on this one.
The entire thing was just a publicity stunt to boost Tesla and Space X.
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u/Ok_Mechanic_6575 5h ago
They didn't say they were the same. They said consider how much fuel the Harrier expends, which is true.