The aim of this project is to show the reader the design of a mixed analogue-digital data acquisition system, and in particular, the application of this design into a FSAE competition car. A data acquisition system is the first step in any electronic design, followed by the transmission of the data and the use of that. In case of a competition car (the application of our system) the data is collected, transmitted via some bus to the entire car and the ECU and then, transmitted via radio to some control centre. The analogue part of the circuit use different kind of sensors, filters and amplifiers. Then, using the PIC18F2480 microcontroller, all the data is digitalized and operate when needed, and is ready to send it via Controller Area Network (CAN) bus. In order to make a good acquisition system design, the need of in-car information was asked to all the team. The results were the need of 7 parameters to be measured: Engine temperature, refrigerant temperature, oil temperature, chassis deformation, engine revolutions per minute, car speed and acceleration in XYZ axis. With a data acquisition system implemented in a car the safety and control increases. The driver can prevent engine failures, chassis fractures or simply know the status of the suspension. This gives safety to the driver, and when complemented with transmission to a control centre, also gives information to the team.