| It does the usual hydropneumatic thing of moving languidly over undulations, flattening crests and filling in dips. |
| Now, one of the defining features of the larger Citroën has been its hydropneumatic suspension. |
| Pressure boosters, air-oil actuators, flow control valves and hydropneumatic cylinders enable maximum movement sequences. |
| Plus enhanced hydropneumatic suspension for vibration-free working and an even smoother ride. |
| The active suspension works by integrating a system of hydropneumatic accumulators with a microprocessor electronic control device. |
| The car, designed by Bertoni, is revolutionary for its aerodynamic lines, hydropneumatic suspension and power-driven systems. |