In the software development for vehicular embedded systems, timing predictability is paramount for the development of the vehicles' safety features and for reaching a satisfactory customer value. Modern vehicles' features require new level of computational power. On the one hand, multi-core platforms can provide e cient support for these features. On the other hand, multi-core platforms complicate the software development of vehicular embedded systems as timing predictability is still an open issues for these platforms. In this paper we present a PhD work de ning a model-based software development methodology which supports early timing analysis for vehicular embedded systems on multi-core.