 Complete the following phrase:  The VSC was tested over the course of the final three races of the season, during parts of free practice sessions. The system was evolved taking into account drivers feedback and was officially introduced for the season following ratification by the World Motor Sport Council WMSC. The VSC was officially used for the first time  and for a brief period prior to the deployment of the actual safety car  at the 2015 Monaco Grand Prix, following a 30G crash involving Max Verstappen. The system saw its first extended deployment at the 