The thesis project reported in this document, aims to expose a detailed description of the whole electric and electronic system of a competition full electric vehicle, realized by Squadra Corse PoliTO, a student team of Politecnico di Torino. The description about the vehicle, is divided into two major sections in the base of the electronics treated, high voltage architecture in the first chapter, and low voltage system in the second chapter. This work do not only consider the description, but it also aims to provide an analysis of the whole system, highlighting the main improvements inserted in the season 21, in relation to the previous one, the 19.