How many special edition Bugatti Veyrons are there? There's the Pur Sang, the Bleu Centenaire, the Sang Noir and Fbg by Hermes, not to mention the countless examples that have either been painted gold or chrome by bored sheiks who've spent too much time in the sun. The targa-fied Veyron, otherwise known as the Grand Sport, has been around a lot less time than its closed roof counterpart, but it's about time the open roof Bug got a special edition...