A vehicle suspension comprises a hub carrier on which a wheel hub is suitable for being mounted, a suspension arm having an outer end connected to the hub carrier by a ball joint and an inner end suitable for being attached to a suspended structure of the vehicle, and a shock absorber. At least one load responsive device is arranged on the suspension arm, the load responsive device comprising a sensor able to generate an output signal in response to a load applied to the suspension arm, wherein a control unit is configured to receive the output signal generated by the sensor and to adjust the stiffness of the shock absorber through a valve adapted to vary passage cross-sections of the fluid contained in the shock absorber.