Made immortal as fictional spy James Bond’s car of choice, the Aston Martin DB5 is one of the greatest icons of British motoring. It’s not often that the chance to buy a DB5 Convertible comes up, with just 123 of those ever built. So that makes this example, ordered and owned by the man who gave his initials to the legendary DB-series of cars – former Aston Martin chairman Sir David Brown – that extra bit special.