Automotive Ethernet is a new in-vehicular network for Advanced Driver Assistant Systems (ADAS). In particular, the Audio Video Bridging (AVB) and Time-sensitive Network (TSN) standards offer guaranteed latency boundaries. A challenge in today’s industry is the fast realization of prototypes to understand the complexity of new communication protocols. The prototype may fail due to limitations in resources or incomplete hardware/software solutions. Open source projects offer a resource-effective solution. This talk presents extremely valuable Automotive Ethernet open source projects. It will be outlined which problems occur due to the selection of the hardware platform and the limitations herewith. It is shown that the combination of open source and open hardware offers the preferred resource-effective solution even for highly complex in-vehicular networks such as AVB and TSN.