Vehicular connectivity serves as a cornerstone in the rapid diffusion of intelligent transport systems and smart mobility. By rendering information exchange feasible between vehicles and networked devices, a shift towards more reliable, resource efficient and environmentally conscious traffic interactions is possible. Versatile, reliable hardware platforms supporting various interfaces play a pivotal role in the ongoing deployment of Vehicle-to-Everything (V2X) communication protocols. To provide the physical infrastructure able to integrate different communication standards and allow for interoperability, a compact, custom, open source hardware platform has been tailored for this application. Starting from a set of initial specifications in terms of interfaces, storage, and physical dimensions, an embedded board has been designed to accommodate off-the-shelf modules and support wireless connectivity between vehicles and networked devices in general.