Retractable hardtop convertibles are the latest trend in open-air driving. A slew of new models is already on the market, including the Volvo C70 and Pontiac G6. In a few months Volkswagen will start selling its new Eos. But we were still surprised when Mazda announced that one of the most renowned soft-top roadsters of all time was adding a hardtop to its model range. For those who want to see the roof in action, check out this video courtesy of LeftLaneNews.