Trasportation powered by the combustion of fossil fuels, moving across the sky, oceans, and land have accelerated climate change, besides giving way to the problem of global energy crisis due to the huge demand and short supply of fossil fuels. So the world aims at combining energy-efficient technologies with clean fuels to enjoy the benefits of vehicles while being sensitive to the environment. Hybrids, electric cars, and biofuels are some of the examples in this regard. However, there is still a long way to go.