Scenarios for regional passenger car fleets and their CO2 emissions

► This study develops scenarios for global passenger car stock, CO2 emissions and fuel efficiency until 2050. ► In a global regionalized approach car stock projections are obtained using a multi-model approach. ► Compared are utility maximization, a non-linear Gompertz model and a panel estimate. ► Preferences for purchasing cars are similar across cultures and nations. ► The demand for cars is largely determined by disposable income.