I drove 1800 miles in a Hydrogen Car

Questions I had while watching:
They said the tank would prevent leaks for its life span, how long is that, and what happens if a car is deserted with a full tank for 100 years? Is the hydrogen still not leaking?
What happens to the tank in a high impact crash? Or even a low impact crash?
How is the hydrogen transported? As these vehicles become more popular, are we going to see large trucks full of hydrogen on the main roads? What are the safety precautions for if one of those crashes?
How is the hydrogen produced?
How safe are the storage tanks at the refueling sites? Who is responsible for maintaining them? How likely are they to cause an accident if they are not well maintained? How likely to cause an accident are they if someone crashes into one?

I have always loved the idea of hydrogen powered cars and I love that they are a real thing now. However, I am also aware that hydrogen is highly flammable and explosive under high pressures. I am also aware that to err is human and so when making something like this you have to try to plan for the worst outcome and try to mitigate risks.