The purpose of this book is talk about how to create a smart vehicle system to control the engine remotely via a cellular phone and tracking the vehicle via GPS using Google Maps. Furthermore, the prevention of vehicle theft was also an important factor. All objectives have been achieved successfully with a system yielding results as expected. Users can control this system device by sending instructions and by receiving alerts by SMS. Users can determine the position of their vehicles via GPS, by using a smart phone in conjunction with the Google Maps application to show vehicle coordinates. The smart vehicle security and tracking system uses the SIM 900 (GSM modem) for communication between the mobile station and microcontroller to send and receive instructions. In order to halt the vehicle when drivers experience any problems, the system uses an ultrasonic sensor and to prevent vehicle theft, the system uses an RFID modem to open the doors of vehicles legally.