I mean in theory if it did work you could use it to take shortcuts or go over very difficult terrain or a flood or something but I don’t think traffic or aviation laws are anywhere near to allowing that
Suppose you accidentally drive your car off a cliff. Accelerometers and other sensors (cameras) could detect the fall and activate the cold gas thrusters to rotate the car into a safe orientation and bring it to a soft landing.
It should even be possible to use the thrusters as an emergency braking system in case of loss of traction, rollovers, departing the roadway, etc, to avoid or reduce impact damage and injuries.
The car is fun as a concept. Amazing as a demo. And the actual street legal versions will still be fun and amazing to drive relative to "ordinary" hypercar criteria.
Yeah, loading high pressure gas into tanks in your vehicle structure is a "safety feature"...
A supercar that can't crash would be very popular among the ultra rich even at 5 mil a pop.