This paper shows some details and acceptability aspects of three types of systems which are part of a comprehensive State of the Art review on Advanced Driver Assistance Systems: Navigation, Advanced Cruise Control and Stop and Go, and Intelligent Speed Adaptation systems. It was concluded that luxury car drivers considered the warning type of Intelligent Speed Adaptation acceptable and expected this to have a positive impact on road safety, and that truck drivers found the navigation functionality most attractive in general, and Advanced Cruise Control and Stop and Go functionality on motorways and rural roads.