The present project covers the design study, analysis and geometric set-up of the fore and aft suspension system of the single-seater racing car Dallara F-317. The goal is to determinate a geometric configuration of the suspension system that improves the base setup determined by the manufacturer for a specific racing track, that in the case of this project is Spa-Francorchamps. The modelling and virtual simulation tools that are used in the project allow to achieve the defined goal. The project shows a brief introduction to the history of the Formula 3 category, the technical specifications of the Dallara F-317 and its suspension system. Using the software Optimum kinematics, the modeling, analysis and simulation of the base configuration of the mentioned car is defined. New configurations of the suspension system are defined, simulated and compared to the base configuration in order to test their performance according to the standards established. Later, by using the software Optimum Lap, the performance of the racing car with the standard configuration and the proposed one is measured in a specific track in order to validate if the proposed solution offers an improvement for that given track. inally, a new geometric configuration of the fore and aft suspension system of the Dallara F-317 is chosen as the better option for the track above mentioned.