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C-Cactus Concept
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  Citroën C-Cactus Concept

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Country of origin:France
Produced in:2007
Introduced at:2007 Frankfurt Motor Show
Source:Company press release
Last updated:September 10, 2007
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Click here to download printer friendly versionCitroën is unveiling C-Cactus at the 2007 Frankfurt Motor Show. This ingenious concept is a new take on vehicle design, centered on essential values. The Marque's ambitious aim is to market an ecological hatchback with cheerful, attractive styling, equipped with a hybrid HDi drivetrain and sold at the same price as an entry-level C4. To square this complex equation, Citroën is exploring new forms of design. It has decided to abandon features that are not essential to comfort and to focus instead on technology, styling and equipment that are positive, ecological and valued by users.

C-Cactus is an ecological car. It includes a significant proportion of recycled or recyclable materials and, like the plant it is named after, it is low on consumption. Weighing just 1,109 kg and featuring a hybrid HDi drivetrain, C-Cactus consumes 2.9 l/100 km for CO2 emissions of 78 g/km. At the same time, C-Cactus is no more expensive than a mid-range family car. Its low production cost can be attributed to the use of new materials and to a rational design process using a smaller number of parts. The cabin is made up of just over 200 parts, i.e. almost half the number used by a conventional hatchback of identical size.

C-Cactus is an essential car, with sharp styling and attractive features. Its curves give it a fun look and strong appeal, while the angles and rounded lines of the bodywork underline its dynamic character. C-Cactus sets high standards of onboard comfort with a roomy interior that is worthy of a family car. It is 4.2 metres long and 1.8 metres wide with a wide range of equipment including air conditioning with automatic temperature control, a high-quality audio system, a panoramic glass sunroof, cruise control and a speed limiter.

The economic and ingenious solutions adopted for C-Cactus keep production costs down and make it possible to fit a diesel hybrid drivetrain, all for the price of an entry-level C4. To achieve this result, C-Cactus places the emphasis on equipment that is essential to passenger comfort. At the same time, it explores new design processes in order to show that economy and ecology need not be synonymous with a rough ride.

C-Cactus is the result of an intelligent design process pursuing new objectives. By exploring new forms of expression and new technical solutions, Citroën's engineers cut the number of parts required to build the car. The dashboard has gone, and its usual functions are now grouped on the central console and the fixed hub of the steering wheel. The central console thus includes the active loudspeakers, gearbox controls and tactile screen giving access to the onboard computer, navigation system and air conditioning controls. The controls for the indicators, lights, wipers, horn and cruise control/speed limiter are on the fixed hub of the steering wheel, as are the tachometer and lights for the indicators, headlamps and warning signals.

Another example of simplification: the part used for the front bumper, which includes the headlamps and chevrons is the same as the part making up the lower part of the tailgate at the rear. This contributes to the assertive design of C-Cactus while bringing economies of scale in production. This simplicity is also reflected in the design of the front end, which comprises just two parts: a fixed bonnet comprising the front wings, and a flap giving access to the vehicle maintenance functions (oil, windscreen washer, etc.).

Reflecting a similar approach, using the air conditioning makes it virtually unnecessary to open the windows. A simple sliding mechanism is therefore provided, since this is sufficient in normal use. Engineers were thus able to get rid of both the window frames and the opening mechanism. At the same time, a number of monoblock units are used for C-Cactus to reduce the overall number of parts. The door panels, for example, are made of two parts, compared with twelve in a conventional hatchback. The seats also comprise two parts: a highly comfortable, moulded, coloured, integral-skin foam part for the seat, and a solid monoblock frame to hold the foam in place and fix the seat to the floor rails. The ergonomics are excellent and - here again - the number of components is limited.

To achieve real environmental impact, Citroën's objective has always been to market technologies and vehicles that are affordable to the greatest number. The objective with C-Cactus is to go one step further, by bringing out a car whose hybrid HDi drivetrain makes it truly ecological car, but that can be sold at the same price as an entry-level family car. With its diesel hybrid drivetrain combining a 70 bhp DIN HDi diesel engine with a particulate filter and an electric motor providing additional power of 30 bhp DIN, C Cactus consumes just 2.9 l/100 km with CO2 emission levels of 78 g/km over a combined cycle. In urban use, ZEV (Zero Emission Vehicle) mode provides silent, all-electric operation. On journeys involving successive acceleration and deceleration, the hybrid system limits fuel consumption by using both types of energy.

The solutions adopted for the design of C-Cactus also contribute to bringing down fuel consumption and CO2 emissions. Using fewer parts makes the vehicle 15% lighter than a C4 Hybride HDi for a total weight of 1,109 kg. The tyre width has also been kept down (205/45 R21) on C-Cactus, which adds to environmental performance.

Fewer parts also means smaller quantities of raw materials. In additon, a significant part of the materials used are recycled or recyclable. The windscreen and windows, for example, are made of recyclable glass. The tyres are also recyclable, as is the crude steel used for the door panels. This metal is unpainted and unvarnished but has been treated for corrosion.

The protective mats are made of recycled leather, taken from leather cut-offs that cannot be used by conventional tanneries. Many parts are made of cork, a natural material made from the bark of oak trees. The felt used for the door panels and fascia stowage compartments is made from wool. This material uses no chemical additives and is both recyclable and biodegradable.

The top speed of C-Cactus has deliberately been capped at 150 km/h. This choice not only contributes to the car's good environmental performance, it also reflects Citroën's efforts to develop a green vehicle illustrating a new approach to the car, in which the motorist is in harmony with his/her surrounding environment.

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  Article Image gallery (11) Specifications