Together more than 100 million EV/PHEVs under the projection are sold worldwide in 2050. But it does reflect the expected size and buying power of the different regions, in terms of where the plug-in vehicles are likely to be sold over time. Together these vehicles are expected to cut global C02 emissions by over 2 gigatonne (Gt) in 2050, roughly in proportion of sales by region. This represents an important part of the overall C02 reductions in transport.