VNS is a high-performance simulator for vehicular networks. It was developed by Ricardo Fernandes at DCC-FCUP and Instituto de Telecomunicações | Porto, supported by the Portuguese Foundation for Science and Technology (FCT) under the doctoral grant (SFRH/BD/61676/2009). VNS is a simulation framework that completely integrates the mobility and network components in a transparent and efficient way, reducing the overhead of communication and synchronization between different simulators. VNS provides bi-directionally interaction between a microscopic mobility model and network simulators such as NS-3 or OMNET++. Visit the website.