alt Hacker Newsyou might have a better chance of surviving that 30 foot launch than a head on collision with a pole or a semi truck. don't get me wrong it seems wildly impractical but there may be rare situations where it's useful. ejection seats on fighters frequently injured their pilot but that is better than being dead.
This whole thing is incredibly stupid and yet, people are bending over backwards to defend it. There is not a single traffic situation where the ability of a car to suddenly launch itself into the air doesn't have more downsides than it staying put. This includes overhead wiring, other people nearby, tunnels, bridges, overpasses, lampposts, traffic lights and other street furniture. With a little luck you will survive the impact of your toy when it lands but the party that you land on does not. People have a hard enough time predicting trajectories with everything constrained to 2D, if cars start jumping around like fleas that is not an improvement. From a standstill with other parties around you this is already a serious problem, if it were moving forward at highway speeds in traffic it would be utterly irresponsible to trigger this kind of launch.