Another key feature of the M9 is its unique hydropneumatic suspension system.

A hydropneumatic suspension operates from its ideal angles at all times and conditions.

The hydropneumatic suspension employed during 1981 is not permitted.

The car was fitted with controversial hydropneumatic suspension and water-cooled brakes at different points in its life.

The fan car and hydropneumatic suspension exploited loopholes in the sporting regulations.

The hydropneumatic suspension allows for increased passenger comfort.

George Messier (1896-1933) was a French inventor who specialised in hydropneumatic suspension.

It used a hydropneumatic suspension.

Hydropneumatic suspension is used on the rear of all models and also on the front of the 7000 series Fastrac.

This vehicled featured a self-leveling, height adjustable hydropneumatic suspension.

The C5 had a further development of Citroën's hydropneumatic suspension, now called Hydractive 3.

It used the same platform as the Citroën Xantia, though without that car's sophisticated hydropneumatic suspension system.

It describes a development of the 1955 Hydropneumatic suspension design using additional electronic sensors and driver control of suspension performance.

This style of motor is noted for its smooth power delivery which complemented the luxurious ride quality of the hydropneumatic suspension.

With the hydropneumatic suspension lowered it was also smaller than the Leopard 1, which gave the MBT-70 a better hull down position.

Orthopaedic doctors advise that patients with spinal injury or disk problems can only drive Citroëns with hydropneumatic suspension.

Hydropneumatic suspension systems can be expensive to repair or replace if poorly maintained or contaminated with incompatible fluids.

This model boasted the largest engine installed in a post-war Mercedes-Benz up to that time, and also featured self-leveling hydropneumatic suspension.

The Xantia also used the traditional Citroën hydropneumatic suspension system pioneered in the older DS.

The suspension is derived from the Hydropneumatic suspension used in the 1950s Citroën DS.

Gordon Murray devised a "hydropneumatic suspension" system for the BT49C, which allowed the car to settle to a much lower ride height at speed.

By 1954, when many British saloons had no suspension to speak of, Citroen was offering hydropneumatic suspension on the 15CV.

In cross-country performance the high power engine and hydropneumatic suspension allowed it to travel almost three times as fast as the M60 without causing problems for the crew.

Among the features seen on the Activa models was the electronically controlled hydropneumatic suspension (known as the "Hydractive" system) combined with an active anti-roll-bar.

The air suspension was inspired by various manufacturers who used Hydropneumatic suspension, such as Citroen, and Mercedes-Benz.