Following the success of the Veyron 16.4 Super Sport, Bugatti did not have to wait long before it received the first inquiries about an open-top version of the Grand Sport that could also deliver 882 kW / 1,200 hp. "We were instantly electrified by the idea of transferring the power of the Super Sport to the Grand Sport, which previously delivered a maximum of 1,001 hp, and thus taking the roadster to a new level," says Wolfgang Dürheimer. The President of Bugatti Automobiles S.A.S. continues: "Our team has managed to transfer the world's most powerful car engine to the open-top sports car while taking all vehicle dynamics and aerodynamic parameters into consideration. We are proud to present the fastest roadster ever at the 2012 Geneva Motor Show with the world premiere of the 1.200 hp Grand Sport Vitesse."
Source: Bugatti Press Release