Despite legislative pushes towards electric vehicles (EVs), internal combustion engines (ICEs) continue to play a vital role in sustainable transport. Market trends indicate that ICE-powered hybrid vehicles are on the rise, outpacing EV sales in many regions. ICEs are key to deploying sustainable fuel technologies like synthetic e-fuels and green hydrogen at scale. Sustainable alternative fuels, including bioethanol, flex fuels, and others, are integral to driving down carbon emissions and ensuring future sustainability. Industry experts predict a sustained dominance of ICE-powered vehicles, especially when coupled with low-carbon technologies. The transition to sustainable mobility requires a balanced approach that incorporates ICEs alongside EVs and other technologies.