Indeed. If your car's power cuts, or breaks fail - the odds of you surviving are incrementally getting higher every year we're on the road. Cars are getting safer and safer, but surely part of that is due to the fact they're on the ground.

If I'm even 10 metres under the ground, flying at 50km/h, if this device fails, of the battery runs out, you're not gonna live to the tell the tale. There is no parachuting, no way of gliding safely to the ground (like planes and helicopters). What is the safety net?

I can't ever see a world where even a minority of the population adopt flying cars. The chance of catastrophic failure (death) is too high.