Citroen DS BiRotor is a lightweight 4-seats coupe designed by Jose Eduardo Sanchez from Mexico. The car has been chosen as one of the finalists for the Michelin Challenge Design 2013 competition. The competitors were asked to explore how design contributes to and impacts the effort to develop more lightweight vehicles that achieve greater fuel efficiency.
This is exactly what we can find in Citroen DS BiRotor : a compact body and a refined interior with lightweight materials and an efficient powertrain solution that makes fuel consumption optimal. The Citroen is a hybrid car, with a 600cc Wankel engine powering the rear axle, and at the front there are two in-wheel electric motors and a CVT transmission.
Citroen DS BiRotor is based on a carbon/aluminum modular chassis, which is left exposed inside the vehicle. There are also other impressive features of the interior, such as a polycarbonate transparent panoramic roof and a futuristic AMOLED screen.The most interesting thing at this concept is the set of tires, because they can adapt to different weather conditions by contracting or expanding, depending on the driver’s demands. When contracting they generate a slightly larger, thinner and harder tire to aid fuel consumption. When expanding larger gaps between the rubbers are created and these allow more water flow and increase grip.
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