Modern vehicles are very complex by incorporating various computational signals and critical information transactions. Electronic control units (ECUs) are embedded with various software functions, network information, sensor/actuator communication, and dedicated hardware. Altogether, the special hardware needs to be adaptable to the current needs of next-generation vehicles. This chapter will give a broad idea about modern automotive systems by considering various factors. Finding the best reconfigurable field programmable gate array (FPGA)-based hardware, intelligent assistance systems for drivers and various communication protocols are elaborated in this chapter. Moreover, it also provides the essential knowledge of IoT-based smart automotive systems along with its pros and cons. This chapter also gives the awareness and comparative study of artificial intelligence (AI) systems in the present smart automotive systems. The overall observation of this chapter will satisfy the audience by knowing the reconfigurable FPGA, IoT, and artificial intelligence-based automotive systems.