[Deliverable pending final approval by the EC] This deliverable has the objective to provide the outcomes of the activities performed in Work Package (WP) 2 “Specifications”. The activities included the design of the 5G-IANA Automotive Open Experimentation Platform (AOEP) and the requirements specification of each architecture layer. The specified 5G-IANA architecture capitalizes on the 5G prospect of being a unified multi-service platform by orchestrating Vertical Services based on virtualized network slices and coordination of distributed edge-to-cloud deployment. The 5G-IANA AOEP aims to provide an open and flexible experimentation platform to third-parties developers (e.g., SMEs) that want to develop new 5G-based services devoted to the Automotive vertical. The availability of an easy-to-use experimentation environment can facilitate the launch of new services creating new market opportunities. Moreover, 5G-IANA will actively address the configuration of the 5G network (e.g., network slicing, edge resources, etc.) with the objective of supporting in the best way the requirements of the new services. In this way, it will be also possible to verify if the current 5G implementation can adequately satisfy the highly demanding performance requirements of Automotive services.