While the famous Italian designer is keeping the rest of the details under wraps, the one-off supercar is believed to be based either on the 599 GTB Fiorano or the 599 GTO with some claiming it may feature a similar rotating central-piece roof to the 2005 Ferrari 575 Superamerica. The bespoke, open-top supercar will probably be powered by a stock 6.0-liter V12 engine, though it is difficult to say what other elements will be kept untouched, as we're talking about a vehicle built to customer specifications.