A live demo of one DreamCloud simulator, developed at CNRS/LIRMM, for embedded multicore systems has been presented during ReCoSoC’2015 Symposium (June 29th 2015 - July 1st 2015) in Bremen (Germany). This demo, entitled "Automotive Multi-Core System Design Exploration Framework in DreamCloud European project" showed how our simulator seamlessly implements a complete design flow starting from Amalthea automotive application models to performance and energy numbers characterizing different application executions on NoC-based multicore architectures.