The H70 standard for hydrogen cars is 10k psi and the tanks for it are usually ~140 liters (depending on the particular model), so very comparable in that aspect. They don't generate the pressure, something has to have pumped it into the tank as seen here, and keep in mind they are hydrogen rather than air.
LPG, no - the pressures are much lower (but also still pumped in and significantly reactive).
Oh wow, do they have 200 litre tanks capable of generating 10,000 psi?
The H70 standard for hydrogen cars is 10k psi and the tanks for it are usually ~140 liters (depending on the particular model), so very comparable in that aspect. They don't generate the pressure, something has to have pumped it into the tank as seen here, and keep in mind they are hydrogen rather than air.
LPG, no - the pressures are much lower (but also still pumped in and significantly reactive).