The digital twin is a comprehensive representation of a product or process into a digital world; it plays a vital role in the product lifecycle and helps to the horizontal integration of the production process. Digital Twin is one of the most promising technologies for system simulation and monitoring. Nevertheless, the concept is relatively new and has different conceptions and applications in the literature. In this work, a review of the State of the Art on principal scientific databases is presented. Besides, a brief classification regarding the main applications found are provided and a proof of concept based on a vehicle chassis.