Over the past century, Citroen has concocted some truly innovative cars, often clothed in other-worldly designs. And it is perhaps the SM which represents its most audacious creation, a car designed to reset the standards in the GT class. This was a bold step for Citroen, as while it had the DS, it was otherwise a mass market brand, one without a true grand tourer in its range. The SM’s roots lay in a quest to see just how far the company could take the front-wheel drive concept, a layout that Citroen had hung its beret on with its 1934 Traction Avant. Development work on the ‘project S-vehicle’ began late in the fifties, using a shortened DS platform.

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