The 2008 Cadillac Provoq Concept car's repeats most Caddy points of emphasis but adds some minor touches for aerodynamic efficiency. For example, the impressive grille actively opens and closes to provide sufficient cooling to the fuel-cell stack. Conventional door handles are replaced by flush-mounted buttons. The underbody is covered completely to improve airflow. Power for accessories such as the lighting and the audio system, is supplied through a roof-mounted solar panel. To further reduce energy requirements, 21 inch wheels with low-rolling-resistance tires are used.
Resource: Automobile Magazine
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