Vehicle tracking is a term encompassing many applications, among them personal tracking, teen tracking, equipment tracking and investigative tracking. GPS tracking systems are available in two different types, passive and active, the latter frequently referred to as “real time”. Passive units monitor locations and movements of vehicles and store positioning data in their internal memory, which can then be downloaded to a computer for viewing at a later time. Active devices combine two technologies in a single unit: GPS for positioning and cellular data technology for the transmission of this data which allows the user to watch the movements of a vehicle in “real time”.