I was at the Tesla Roadster event - Just now leaving the Space X facility. I am a magician - I own the Magic Castle in Hollywood. Any sufficiently advanced technology is indistinguishable from magic. The demo was real. I was a kid again watching it.
They really just got on stage and said this newly designed 4000+ pound car can do flips and go half the speed of sound (380+mph) and will ship in 2028. This is a prank, right?
SpaceX has used thrusters to position spacecraft for decades.
Making them work in a vehicle instead of a vacuum took all-new hardware & controls.
Every usable void in the car is packed with Carbon Fiber Overwrapped Pressure Vessels (COPVs)
More compressed gas on board = more flight time