This document summarizes several ways that connected and automated vehicles can benefit from cooperation and sharing of information through vehicle-to-everything (V2X) communication. It discusses how V2I communication can help with overheight vehicle detection and railroad crossing notifications. It also discusses how V2V communication can enable applications like cooperative platooning, blind spot warnings, and sharing of sensor data about pedestrians between vehicles. However, it notes that security is a challenge that must be addressed to ensure safe operation and avoid attacks that could disrupt vehicle cooperation or endanger drivers.