The automotive industry is rapidly evolving, transitioning from traditional mechanical systems to advanced, automated technologies. As vehicles become increasingly autonomous, the role of the driver is shifting from active control to passive supervision, which introduces new safety challenges. One critical area in ensuring road safety is the development of Driver Monitoring Systems (DMS), which are designed to detect driver states such as fatigue, distraction, and inattention. Despite the progress made in this field, existing DMS technologies still face several limitations, particularly in terms of real-time accuracy, reliability, and privacy concerns related to the collection of sensible data. This thesis examines the evolution of automotive technologies with a specific focus on Driver Monitoring Systems.