PARIS -- Citroen's new Airflow 2L concept is based on a standard C4 Cactus, a four-door hatchback with a low profile.

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Photo by: Josh Miller/CNET

Shown off at the Paris Motor Show, the body has been remade with composite plastics, high-strength steel and aluminum to reduce weight.

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Photo by: Josh Miller/CNET

The underside of the concept uses a fairing to increase air flow.

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Photo by: Josh Miller/CNET

Under the hood is Citroen's previously shown HybridAir system, which uses compressed air to help drive the wheels.

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Photo by: Josh Miller/CNET

Air intakes in the bumper automatically open or close to maximize aerodynamics.

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Photo by: Josh Miller/CNET

Automatic wheel flaps also adjust to maximize aerodynamic performance.

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Photo by: Josh Miller/CNET

Citroen calls this side feature AirBumps. They're designed to protect the sides of the car from damage.

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Photo by: Josh Miller/CNET

The orange flaps help guide air around the Airflow 2L concept.

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Photo by: Josh Miller/CNET

The cabin of the standard C4 Cactus shows LCD panels for instruments and infotainment.

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Photo by: Wayne Cunningham/CNET
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