Vehicular networking and communication systems is an area of significant importance in our increasingly connected and mobile world. Effective vehicular connectivity techniques can significantly enhance efficiency of travel, reduce traffic incidents and improve safety, mitigate the impact of congestion, and overall provide a more comfortable experience. Towards this goal, the 2015 IEEE Vehicular Networking Conference (VNC) seeks to bring together researchers, professionals, and practitioners to present and discuss recent developments and challenges in vehicular networking technologies, and their applications. IEEE VNC 2015 will continue the tradition from previous editions to include a poster session to allow the authors to closely interact with, and obtain feedback from, the conference audience on new or on-going research contributions related to vehicular networking. Posters are especially suited for presenting controversial research directions that may generate discussion, or promising ideas not yet fully validated through complete extensive evaluation. IEEE VNC 2015 will also include a demonstration session for researchers to showcase their latest prototypes with media, models, or live demonstrations. The demo session will be co-located with the poster session to ensure maximum visibility and a close interaction with the conference audience. We solicit proposals for demonstrations related to vehicular networking, describing either mature or innovative systems and prototypes developed for commercial use or for research purposes, from industries as well as universities. We especially encourage demos on validating important research issues or showcasing prototypes that demonstrate realistic applications.