Citroen Hypnos Concept

Concept Cars 14 Oct 2008
Citroen Hypnos Concept

Presented at the Paris Motor Show, the Citroën Hypnos is a design study for a luxury ecological crossover featuring the HYmotion4 hybrid powertrain, a bold and sleek exterior design and an original colorful interior focused on dreamlike technology.

Citroen Hypnos Concept Design RenderingFirst previewed back in September 2008, the Hypnos concept is equipped with the HYmotion4 diesel hybrid drivetrain – the same featured on the Peugeot TC HYmotion4 Concept.

Feasible from an industrial standpoint, this architecture features a front diesel engine and a rear axle-mounted electric motor, which optimizes dynamic performance and traction while delivering low fuel consumption and emissions (4.5 l/100 km and 120 g/km of CO2).

Hypnos’ exterior features sleek, flowing body lines, with a total length of 4.9 meters and 22-inches wheels combines the spirit of a saloon with the volumes of a cross-over.

The cabin, with its original colours, premium materials, comfortable individual body-hugging seats, is inspired by dreamlike in-car technology and colour therapy, nd enables passengers to enjoy a powerful sensory experience, verging on the magical.

Citroen Hypnos Concept Citroen Hypnos Concept

Exterior Design

Citroen Hypnos Concept - front viewHypnos exudes elegance and strength with its dynamic, sculpted body lines that are both taut and fluid.

Hypnos is eye-catchingly proportioned at 4.90 m long, 2.17 m wide and 1.58 m high.

From the pronounced wheel arches to the tautly drawn bonnet and raised waistline, all the body lines reflect strong but sophisticated muscle power.

Hypnos also appeals with its vitality, giving the impression of movement even when at rest.

Citroen Hypnos Concept 6The pillarless “floating” roof, suggesting generous interior space, flows purposefully back to the concave rear window so typical of Citroën executive saloons. The feeling of movement is also conveyed by the powerfully sculpted flanks.

The sleek looks are enhanced by the deep radiant grey of the bodywork. Varying in intensity according to the light, this colour gives Hypnos an elegant and prestigious sheen commensurate with its luxury standing.

The rear-hinged doors on Hypnos make access easier, revealing the vehicle’s interior "as if uncovering a jewel."

A cargo tailgate at the back gives unrestricted access to the boot. Alongside their aesthetic appeal, these opening systems add to the car’s functionality and underline its identity as a vehicle for long-distance travel.

Interior Design

Citroen Hypnos Concept InteriorThe ambience inside Hypnos is light years away from a conventional motoring experience. The cabin embodies the magical content of the concept car, making each journey a sensory adventure.

The shimmering interior makes a dramatic and eye-catching break with the deep grey bodywork. Onlookers will marvel at the rainbow hues of the cabin.

Using these bright colours in the interior of an executive car interior underlines Citroën’s creativity. 

Citroen Hypnos Concept Interior 4Using materials such as leather and brushed aluminium, the cabin that creates a feeling of refinement and comfort.

The cabin contains four seats positioned on either side of a central helix in a unique configuration that brings to mind DNA and organic life, reflecting Citroën’s focus on human values.

The long, three-metre wheelbase combined with the original, staggered seat layout gives each passenger an astonishing amount of personal space.

Never have the passengers in a vehicle of this size had this much room. Leg room, for example, is practically that of a limousine.

Citroen Hypnos Concept Interior 2In keeping with executive standards of comfort, passengers can customise their own space using the pivoting blades of the central helix, which include a range of controls, such as the air conditioning settings.  

The seats are made up of prism-shaped components that can be inflated and deflated to give occupants upper and lower back massages.

Creative interior design

Citroën is committed to making technology more human, accessible and attractive. Giving fitting physical form to this technology and adding new, almost magical, content was one of the main aims when designing Hypnos.

Citroen Hypnos Concept Interior 1The instrument cluster in front of the driver is presented through prisms, like a diamond, with each facet displaying driving information. And like a jewel, the cluster is mounted in a metal setting of premium quality.

This cluster is the main feature at the front of the cabin, embracing a touch screen in the middle of the console and encompassing air vents on either side of the dashboard.

Using micro-diodes located inside the air-conditioning duct, the air vents gently diffuse halos of soft light, in a colour that varies with the chosen temperature.

Hypnos also innovates by bringing passengers the benefits of colour therapy. A ceiling-mounted camera films the driver’s face and regularly measures anthropometric data.

The system compares these measures with pre-recorded data to gauge the driver’s state of mind and adjusts the cabin lighting and scented air-freshener fragrance in consequence. Travelling in Hypnos is a remarkable experience in relaxation.

The original onboard clock, designed by the artist Michel Serviteur changes colour depending on the light at different times of day.

Citroen Hypnos Concept Citroen Hypnos Concept

Dispensing with needles and digital read-outs, it emits a succession of rhythmic colour pulses "like the breathing of a living being."

Technical Features

Citroen Hypnos Concept RenderingThe Hmotion4 hybrid powertrain features a 200 bhp (147 kW) 2-litre HDi DPFS diesel engine mated to a six-speed electronic gearbox system, with torque of 420 Nm – combined with an electric motor located on the rear axle developing 50 bhp for 200 Nm of torque.

Hypnos is also equipped with Stop & Start technology that cuts out the engine when the car comes to a halt in urban traffic jams or at red lights. This system also powers the electric motor when the vehicle is in 4×4 mode.

By controlling fuel consumption and, hence, pollutant emissions, Hypnos has combined cycle consumption levels of 4.5 l/100 km for CO2 emissions of 120 g/km.

If the driver keeps a foot on the accelerator pedal, the boost function kicks in to provide the immediate torque required. This function combines the torque of the combustion engine with that of the electric motor to deliver an acceleration from 0 to 100 kph in 9.4 seconds and a 0-1000 meters sprint in 31 seconds.

Additional technical highlights include third-generation hydraulic suspension and selectable four-wheel drive mode.

Citroën Hypnos Concept – Technical Specifications


  • Length: 4,900 mm
  • Width (excl. rearview mirrors): 2,036 mm
  • Overall width: 2,172 mm
  • Height: 1,580 mm
  • Wheelbase: 3,000 mm
  • Front overhang: 980 mm
  • Rear overhang: 920 mm


  • Gross vehicle weight: 1,800 kg

Performance and fuel consumption

  • 0 to 400 m: 16.8 seconds
  • 0 to 1,000 m: 31 seconds
  • 0 – 100 kph: 9.4 seconds
  • 30 – 60 kph: 2.6 seconds
  • 80 – 120 kph: 6.8 seconds
  • Top speed: 212 kph
  • Combined consumption: 4.5 l/100 km over a standard combined cycle
  • CO2 emissions: 120 g/km

HYmotion4 diesel hybrid drivetrain

  • 2-litre HDi DPFS diesel engine (200 bhp (147 kW) / torque of 420 Nm
  • 6-speed electronic gearbox system
  • Electric motor on rear axle (50 bhp / torque of 200 Nm)
  • ZEV mode (range of 3 km at 50 kph)


  • Cd: 0.30
  • CdA: 0.78 m²

Running gear

  • Hydraulic suspension
  • Special Michelin tyres: 275/40 R22

(Source: Citroën)

Image Gallery

Related Stories

Citroen Hypnos design awarded

Citroen Hypnos design awarded

At the Autocar Awards 2008 the Citroën Hyonos Concept has been named 'Concept Car of the Year', while Leighanne Earley, responsible for the original interior design, has received the 'Automotive Leader of the Future' award.

Citroën GT Concept

At The 2008 Paris Motor Show Citroën has unveiled the GT Concept, an extreme show car developed in partnership with Polyphony, maker of the Gran Turismo 5 PS3 videogame. The car features a racing-inspired design, dynamic sculpted lines and...
Synergy Concept

Synergy Concept – Polestar Design Contest 2022 Winner

At the IAA 2023 in Munich Polestar presented Synergy, the winning design from the latest Polestar Design Contest, developed in a 1:1 scale model. The company also announced a partnership with Hot Wheels.


Leave a Comment


Get all the updates with our weekly newsletter!

Find a Car

Scroll To Top
Scroll To Bottom