Automotive is the driving industry that has active interest in developing electrical and electronics level vehicular architecture. This paper reviews some of the major architecture trends in current and future vehicles. It will point out to most relevant articles and other material published on this topic. Also listing out the enabling technologies for new technologies that should be studied more. Automating a part or the whole vehicle is heavily dependent on the computers and the vehicle internal network. When the network and amount of computers and control modules increase, it becomes increasingly important to pay attention to the architecture of the whole system.