Natural Gas Vehicles (NGVs) often deliver similar horsepower ratings to their diesel and gasoline-powered counterparts. Premium gasoline is 91 octane. Natural gas has an octane rating of approximately 130. This higher octane allows for increased engine compression and combustion efficiency. Because of the clean burning attributes of natural gas, NGVs generally have longer engine life compared to most gasoline-powered vehicles.
Don’t forget how impractical and dangerous it is to store and transport.
Distribution will be a major problem because gas has to be liquified under high pressure in limited amounts for safety.
If it is this economically feasible then the electomotive industry will adopt it.
If this is done through forced mandate like Obamacare it will be an utter disaster.