The 'Number One' Gran Sport was pre-sold at last summer's Pebble Beach Auction for $3.19 million US, with part of the proceeds ($900,000 to be exact) being donated by Bugatti to the Pebble Beach Company Foundation Charity.

Other changes include the redesigned air intakes for the 16-cylinder mid-engine that feature 10-centimetre wide carbon-fibre elements to offer protection in the event of a roll, reinforced monocoque structure around the side skirts and the transmission tunnel plus stiffened B-pillars.
Bugatti also updated the car's interior with moisture-resistant, backstitched leather and added a range of new equipment features including a reversing camera with 2.7-inch monitor integrated in the rear-view-mirror, and the "Puccini" sound system with digital signal processor.
As for the Gran Sport's performance figures, with the roof closed it can reach a top speed of 253mph or 407 km/h. Open it up and you'll have to do with speeds of up to 224mph or 360 km/h (that's 11km/h or 7mph more than Bugatti initially projected). If you get caught up in a rain and are forced to use the emergency soft top, the supercar's top speed is restricted to 80mph or 130 km/h.








