As the world shifts to more environmentally friendly ways to power cars and trucks, electric vehicles and fuel cell vehicles have grabbed much of the spotlight. But perhaps another type of fuel should be added to that list as a green alternative to gasoline: e-fuel.

Europe has been looking at carbon neutral e-fuel and plans to have it play a crucial role in many modes of transport, from planes and ships to large trucks, as it works toward a goal of carbon neutrality by 2050.

Japanese automakers have also been conducting basic research on e-fuel as a possible major green alternative to EVs as Europe is set to introduce tougher vehicle emissions standards in 2030, industry sources say.