The transport sector is the main emitting sector and represented about 26% of total French GHG emissions in 2010. The French DDP team chose to develop two scenarios for the passenger transport sector consistent with the 2°C target and the SNBC objectives, reaching both a reduction of about 78% of CO2 emissions compared to 1990, down to about 20 MtCO2 in 2050. These two deep decarbonization pathways embody contrasting futures of the mobility demand, as well as the supply-side solutions that will be necessary.