Advanced Driver Assistance Systems (ADAS), created for enhancing the driving experience and actively preventing road crashes have been progressively incorporated in vehicle designing essentially during the last decade. However, the literature has shown how some of these assisting technologies are not used by drivers in tandem with their potential. The aims of this study were first, to examine the availability and demand of ADAS technologies among Spanish drivers and, secondly, to explore the perceived constraints and discouraging reasons for avoiding the use of available ADAS in their vehicles. For this national cross-sectional study, data from 1,207 Spanish drivers were analyzed. The results of this study show that, on one hand, GPS navigation, rain sensors and automatic lightning are the most frequently used and, on the other, gestural control, E-call and post-collision emergency braking are the less demanded ADAS features in Spain. Also, low perceived value, lack of confidence and potential distractibility constitute the main constraints perceived by drivers for using these assisting technologies while driving. In this regard, and jointly with a progressive vehicle automatization, a deeper emphasis on driver training, safety and efficiency-related benefits of ADAS technologies may strengthen its acceptance and progressive inclusion in everyday driving.