The demonstrators produced within the project by GKN and RHP have been tested, and they succesfully satisfy the requirements in terms of fatigue tests. A weight and volume reduction of about 40% has been obtained. A preliminary analysis on the raw materials AM4630 L-PBF and 17-4PH PMD with different treatments and finishing has been performed, both satisfy the mechanical properties requirements and the 17-4PH heat treated with PMD process is the one with highest fatigue properties. Therefore, for this solution some further volume reduction could be implemented. In terms of LCA, the environmental susteinability of the cast iron component beats the addidtive manufacturing ones. One of the aspect is the production rate and the total number of produced parts with casting process respect to an additive manufacturing one. The PM components represent the 4% of the powertrain weight, one possible way to exploit the results could be the introduction of additive manufacturing components to replace some of the PM components already in use, with a consistent weight reduction and iso performances.