LNG and LNG are the ideal ecocompatible fuels: cars fueled with gas are always allowed to circulate, even when traffic is limited because the admissible levels of pollution have been exceeded.
The gasses produced by the combustion of LPG and LNG have a very low content of polluting substances, some, but not all, of which are regulated, and greenhouse gasses.
According to the study Green Economy and Motor Vehicles: an Italian project carried out by the Foundation for Sustainable Development, “gas-fueled cars give better environmental performance that traditional cars with advanced standards: from 10 to 20% better in CO2 with respect to gasoline-fueled cars, and almost 80% less NOX and 40% less PM10 that a Euro 6 diesel-fueled vehicle.”
With gas drivers save about 55-60% on the cost of fuel compared with gasoline and diesel oil. In addition to this economic advantage they may also be state and local contribution.