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The Citroën C5 is a large family car produced by the French manufacturer Citroën since early 2001, and now in its second generation. The C5 replaced the Citroën Xantia, in the large family car class. It is the first Citroen with "Cx" naming nomenclature. == First generation (DC/DE, 2001–2007)== The first generation C5 was available as a five-door hatchback or five door wagon styles only. Unlike its predecessors, the C5 was a hatchback with a three-box design and a hatch. This form actually disguised the hatch, so Citroën has completely reversed the design philosophy from the fastback saloon era of Robert Opron. Power came from 1.8 and 2.0-litre straight-4 and 3.0-litre V6 petrol engines as well as 1.6, 2.0 and 2.2-litre direct injection diesel engines. The first generation C5 was the last Citroën developed under the chairmanship of Jacques Calvet (1982–1999). The C5 had a further development of Citroën's hydropneumatic suspension, now called Hydractive 3. The major change with this system was the use of electronic sensors to replace the mechanical height correctors seen in all previous hydropneumatic cars. This allowed the suspension computer to automatically control ride height: at high speed the suspension is lowered to reduce drag and at low speeds on bumpy roads the ride height is raised. Manual control of ride height was retained, though it was overridden by the computer if the car was driven at an inappropriate speed for the selected height. Certain cars also featured the computer controlled ride stiffness, called Hydractive 3+, seen on the Xantia and XM. In a major break with Citroën tradition, the brakes nor steering were no longer powered by the same hydraulic system as the suspension, but the power steering used the same LDS fluid with its own pump. It has been speculated that the primary driver for this was the cost of developing electronic brake force distribution for the system when the PSA Group already had an implementation for conventional brakes. Another factor may be the highly responsive nature of 'traditional' Citroën brakes, which some have found hard to adjust to on other hydropneumatic cars, though it is felt by some to be superior. In 2004, the C5 underwent a major facelift (new front and rear ends; same centre section) to bring it into line with the look of the new Citroën C4. The hatchback was lengthened from to and the wagon from to . Also this new version got swivelling directional headlights. The Hydractive suspension improves ride quality, keeps the car levelled, and enables the car to drive on three wheels if one tire is flat. The suspension is derived from the Hydropneumatic suspension used in the 1950s Citroën DS. Variations in height using the Hydractive suspension range up to in the front and in the back. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Citroën C5」の詳細全文を読む スポンサード リンク
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