More power to them if they can make the cost = to gasoline.
But then you need to have a place to fuel them up. At local and out of town charging stations for electric vehicles, I've seen probably 2 or 3 "fueling up" at those stations in the past 3 or 4 years. Meaning very few people own them.
Imagine thinning out those green drivers by giving them two choices. Now I will only see 1 1/2 people at the EV charging stations and the other 1 1/2 people will be fueling at the nitrogen stations. It's not going to make more green people unless it's cheaper than gasoline and there are fueling hookups at every gas station in the country.
Maybe it will work for city and state vehicles that stay on one local...... meaning less need for a lot of fuel stations. Then again, with not many nitrogen vehicles produced in my example, (compared to gas or hybrids) the cost per vehicle would be pretty high as would the nitrogen fuel.
It has 4X less energy than gasoline.
And there's safety issues.
https://en.wikipedia.org/wiki/Liquid_nitrogen
Safety
Filling a liquid nitrogen
Dewar from a storage tank
A liquid nitrogen storage tank. It is a permanent structure.
Because the liquid-to-gas
expansion ratio of nitrogen is 1:694 at 20 °C (68 °F), a tremendous amount of force can be generated if liquid nitrogen is rapidly vaporized in an enclosed space. In an incident on January 12, 2006 at
Texas A&M University, the pressure-relief devices of a tank of liquid nitrogen were malfunctioning and later sealed. As a result of the subsequent pressure buildup, the tank failed catastrophically. The force of the explosion was sufficient to propel the tank through the ceiling immediately above it, shatter a reinforced concrete beam immediately below it, and blow the walls of the laboratory 0.1–0.2 m off their foundations.
[17]
Because of its extremely low temperature, careless handling of liquid nitrogen and any objects cooled by it may result in
cold burns. In that case, special gloves should be used while handling. However, a small splash or even pouring down skin will not burn immediately because of the
Leidenfrost effect, the evaporating gas thermally insulates to some extent, like touching a hot element very briefly with a wet finger. If the liquid nitrogen manages to pool anywhere, it will burn severely.
As liquid nitrogen evaporates it reduces the
oxygen concentration in the
air and can act as an
asphyxiant, especially in
confined spaces. Nitrogen is odorless, colorless, and tasteless and may produce
asphyxia without any sensation or prior warning.
[18][19][20]
Oxygen sensors are sometimes used as a safety precaution when working with liquid nitrogen to alert workers of gas spills into a confined space.
[21]
Vessels containing liquid nitrogen can
condense oxygen from air. The liquid in such a vessel becomes increasingly enriched in oxygen (boiling point 90 K; −183 °C; −298 °F) as the nitrogen evaporates, and can cause violent oxidation of organic material.
[22]
Ingestion of liquid nitrogen can cause severe internal damage, due to freezing of the tissues which come in contact with it and to the volume of gaseous nitrogen evolved as the liquid is warmed by body heat. In 1997, a physics student demonstrating the Leidenfrost effect by holding liquid nitrogen in his mouth accidentally swallowed the substance, resulting in near-fatal injuries. This was apparently the first case in medical literature of liquid nitrogen ingestion.
[23] In 2012, a young woman in England had her stomach removed after ingesting a cocktail made with liquid nitrogen.
[24]