I very much doubt the machine we saw flying was 1000kg+. It was either MUCH lighter, supported by cleverly hidden cables, or some other trickery. The dramatic lighting isn't just for visual effect, it makes it easier to hide the reality of the demonstration.
If there was a live audience anywhere near that stage they wouldn't have been able to use thrusters to fly something that actually weighs as much as a car.
To be fair: it wasn't really flying, it was more "falling with style."
The audience wasn't that close.
What cable arrangement would you propose to move a car in that way? I think it would be easier to do with gas thrusters than with cables. They'd get tangled in each other.