The design of a vehicle’s suspension system has the main task to find the best trade-off between the handling capability of the vehicle and the ability to filter the road irregularities. Since the early stage of the automotive industry, different types of solutions have been introduced to maximize at same time both requirements and, one of these, are the passive interconnected suspensions that provide a linkage between the front and the rear axle. This work proposes a fluid-mechanical interconnected suspension system with the aim to uncouple the pitch and heave modes from the roll and warp ones, and to realize a soft warp mode.