Bugatti at the Beijing auto show has brought Grand Sport convertible, a unique double-decker open-top design. The first layer of open-top is made of transparent polycarbonate roof, installation and removal through manually; second regular soft-top roof is designed to power open.
Although the model is a convertible, but the Veyron GrandSport and Veyron Coupe models using the same power unit, 16-cylinder four turbo engine can provide up to 1001 horsepower, and speed will reach 407 km / h, which is fastest production car, and do not need to pay attention to, in convertible mode, its maximum speed is limited to 360 km / hour, but it is also currently the world’s fastest convertible model. 
