• One of only four DS 21 convertibles equipped with electronic fuel injection • Present ownership since 2003 • Comprehensively restored between 2008 and 2015 • A mere 7,500 kilometres covered since completion • Hydropneumatic suspension working very well Just as it had done 21 years previously with the revolutionary 'Traction Avant', Citroën stunned the world again in 1955 with the launch of the strikingly styled 'DS'.

Beneath the shark-like newcomer's aerodynamically efficient, low-drag bodyshell there was all-independent, self-levelling, hydro-pneumatic suspension plus power-operated brakes, clutch, and steering.

The project had been initiated in the 1930s by the company's managing director, Pierre-Jules Boulanger, and would be brought to fruition by designers Andre Lefebvre, previously with Voisin and Renault, and Flaminio Bertoni, who had worked on the styling of the pre-war Traction Avant.

Part of Boulanger's brief had been that the proposed 'VGD' (Voiture de Grand Diffusion or...