For achieving climate protection targets in the transport sector, the use of alternative drive systems and alternative fuels are potential options in addition to traffic avoidance and modal shift. This study analyzes and compares various technology options for passenger cars as well as light and heavy-duty vehicles. The assessment covers the entire life cycle of the vehicles and also analyzes other environmental impacts (e.g. acidification, eutrophication, energy consumption) in addition to greenhouse gas emissions. The use of alternative fuels and renewable energies is modeled using two different ramp-up scenarios and the results are presented for three different reference years.