The increasing requirement for more sustainability in the transport sector, which is responsible for more than 25% of CO(2)emissions worldwide and consumes almost 50% of the world's oil production, creates a growing demand for technological advancement in this field. Cellulosic ethanol, produced from agricultural residues, is an advanced biofuel that meets these needs: it offers excellent greenhouse gas savings based on renewable raw materials that are already available in large quantities worldwide. This essay will outline challenges and opportunities for using advanced biofuels, in this particular case, cellulosic ethanol, to reduce the usage and dependency of fossil fuels and cut greenhouse gas emissions in the transport sector, showcasing Clariant's sunliquid (R) process technology.