The transport sector is a major source of greenhouse gases and other pollutants. This study estimates the potential of digitalized mobility solutions, such as Mobility as a Service (MaaS), to reduce emissions and vehicle kilometers travelled in the Nordic countries. Also, to assess the potential future impact of MaaS, modelling is done to project road transport’s energy consumption, CO2 emissions and total costs in the Nordic countries up to 2050. There are still several barriers to the wider adoption of shared mobility services. We present ways to overcome these barriers with incentives and policy instruments to substitute car ownership, and specify what different actors can do to accelerate this change. Finally we present policy recommendations on how to reduce the dependence on car ownership, reduce the vehicle kilometers driven, and stimulate the demand for greener mobility services.