The late politician, diarist and car enthusiast Alan Clark was a notable fan of the rare two-door convertible Citroen DS 'Decapotable', which was developed by the French coach-builder Henri Chapron. These beautiful cars now fetch eye-watering prices.

This picture shows an example of its even rarer sister model, the closed 'Le Dandy' two-door coupe version, also by Chapron. Snapped at this year's Techno Classica in Essen, it was for sale at EUR135,000.