The mystery has been solved! The mysterious Pagani Zonda F Roadster spotted in Switzerland with Zonda Ciqnue parts has been identified.
The car is the first F Roadster built, chassis 56 was unveiled at the Geneva Motor Show in 2006 and used for the press. It has been also the first F Roadster produced with bare carbon fiber body.
Now the car features red/black leather interior, Zonda R brake scoops, front and rear spoilers, exhaust and black wheels from Zonda Cinque.
Here a video of the car in a gas station in Switzerland.
How the car was before the upgrade.