One of the key challenges of 5G wireless communication systems is the enhanced support of vehicular communication services, known as eV2X. Essential 5G use cases to be addressed through eV2X include vehicles platooning (grouping of vehicles travelling together), advanced driving (semi- or fully-automated driving), extended sensors, and remote driving. The quality-of-service requirements of such V2X-related use cases, which are mainly intended to improve traffic safety and/or traffic efficiency, are highly demanding. In particular, eV2X targets communications of very low latency (in the order of tens of milliseconds), as well as of ultra-high reliability (e.g., fully automated driving requires values of 99.99\% within a range of up to 500 meters). This seminar is focused on introducing V2X communications in 5G, and presenting recently developed solutions for latency reduction through localized V2X schemes. Proposals for multi-connectivity and multi-antenna schemes for reliability enhancement in V2X are also presented.