Compressed Natural Gas powered truck
A natural gas vehicle (NGV) is an alternative fuel vehicle for autonomous mobility that uses compressed natural gas (CNG) or liquefied natural gas (LNG). Natural gas vehicles should not be confused with vehicles powered by propane (LPG), which is a fuel with a fundamentally different composition.
Worldwide, there were 24.452 million NGVs by 2016, led by China (5.0 million), Iran (4.00 million), India (3.045 million), Pakistan (3.0 million), Argentina (2.295 million), Brazil (1.781 million), and Italy (1.001 million). The Asia-Pacific region leads the world with 6.8 million vehicles, followed by Latin America with 4.2 million. In Latin America, almost 90% of NGVs have bi-fuel engines, allowing these vehicles to run on either gasoline or CNG. In Pakistan, almost every vehicle converted to (or manufactured for) alternative fuel use typically retains the capability of running on gasoline.