Transport and mobility are now high on many agendas as countries and regions across the world seek to increase mobility and to lessen transport’s impact on the environment and the climate. As the world scrambles to meet its increasing energy demands, the search for renewable energy sources is more and more desperate. Energy experts predict a 35 per cent increase in worldwide petroleum demand by 2025. Biofuels are poised to meet the world’s increased energy demands. With the number of vehicles in the world projected to rise from 700 million today to over 2 billion by 2050, efforts are intensifying to find ways to meet this fastgrowing demand while at the same time minimizing the sector’s greenhouse gas emissions. The future strategies of clean transportation depend on the availability of fuels, appropriate engine technologies and their impact on climate and the environment. The transition from fossil fuels to alternative and renewable fuels is already taking place, along with new engines, and will continue to grow. Leading car and vehicle manufacturers have contributed towards creating the necessary technologies and continue to do so. Progress has been achieved in the implementation of legislative structures, directories, improvement of engine efficiencies, fuel generation and marketing strategies in Japan, the US, the EU and other parts of the world.