In literature there are several options for active and semi-active suspensions able to perform height adjustment and damping characteristic control, but very few examples of suspension systems capable of performing the mentioned functions and controlling the car's roll behaviour. One possible alternative is represented by a system that replaces the canonical anti-roll bar, using an interconnected hydraulic circuit. The whole system is composed of an active suspension able to lift the car's body and a hydraulic interconnected circuit which replaces the shock absorber and can change the damping characteristic controlling the internal active valves. The main object of this project is to study and understand the vertical and rolling behaviour of the car, starting from the company request in terms of vertical and rolling stiffness and to analyze the damping characteristics of the car, by designing and optimizing the hydraulic circuit of the suspension system.