Hatchback-derived convertible models such as the Ford Focus CC and Vauxhall Astra TwinTop are enjoying strong demand in the auction halls and are overshadowing other open-top model sectors.

Analysis by Manheim of the convertible sector shows that hatchback-derived models sold at auction for an average of £10,841 during the third quarter of 2007 – representing a sale price of 61% of cost new.

In the same period roadster models such as the Mazda MX-5 sold for an average of £6,073, which equates to 37% of cost new, while compact executive-derived soft-tops such as the Saab 9-3 sold for £15,330 (53%).

This illustrates the wider acceptance of folding roof convertibles, especially among fleet operators, as they offer open-top motoring with fewer security concerns than soft-tops.