Bioethanol as a motor fuel in the transportation sector, mainly for road transportation,has been subject to many studies and much discussion. Furthermore, the topic involvesnot only the application and engine technical aspects, but also the understanding of theentire life cycle of the fuel, wellâtoâwheels, including economical, environmental, andsocial aspects. It is not, however, the aim of this report to assess every single one ofthese aspects. The present report aims to address the technical potential and problemsas well as the central issues related to the general application of bioethanol as anenergy carrier in the near future