The Bugatti Tourbillon has been completely redeveloped, with a chassis made of a T800 carbon-fiber composite. Despite the electrification, the Tourbillon—which can exceed 400 km/h—weighs less than the Chiron, according to Bugatti.A sense of mechanical timelessness was a core part of the Bugatti Tourbillon project. For a car that will be displayed on the concours…