Advanced Driver Assistance Systems (ADAS) are electronic systems, present on modern vehicles, which enhance the road safety by providing assistance on the driving act. These systems are usually associated with semi-autonomous and expensive vehicles. Oppositely, yet affordable, modern smartphones, endowed with an operating system, are capable of providing a high computational power allied to multiple embedded sensors and wireless connection capabilities. Hence, these devices are a convenient and practical platform to use as a smart sensor and driving assistance for intelligent vehicles. This paper presents two of the broad range of practical applications that regards this approach: I) A vehicle data recorder and II) A road segmentation application. Furthermore, other applications are going to be discussed.