This Special Section on “In-Vehicle Embedded Systems” presents four papers that deal with relevant aspects pertaining to the topics highlighted above, covering a spectrum of topics, ranging from schedulability and real-time Quality of Service analysis, thanks to deterministic as well to stochastic approaches, to the composability issues when components provided by different partners are to be integrated or when the designer wants to obtain preliminary results on end-to-end response time during earlier phases of the design process.