I don’t know about big trucks, but for pick up trucks the size of the tank is similar. For gas vehicles, you can run gas as well.
The explosion risks are different, as the Cong would disperse differently than liquid fuel. But the tanks are designed to withstand all conceivable impacts. Of course, nothing is 100% safe.
The performance is similar to normal fuel.
For cars, you CAN get a compressor installed in your home, but fill ups would take longer because your home natural gas would need to be compressed.
Conversions of normal vehicles are still cost prohibitive. I was close to being able to make it work, but you need to dive about 40,000 miles per year to make it work.
Are you talking about gas or gas?
OK America, how many electric power providers have electric vehicles in their company fleets? How many CNG and propane vehicles in the gas company fleets?