Update 11/30/2017: Pagani just released a video on detailing the ultra-meticulous Zonda restoration process. You can watch the clip at the bottom of this post, which was originally published October 31, 2017.
Although Pagani can't go back as far as his former employer Lamborghini does with its Polostorico program, with a rumored 137 Zondas built between 1999 and 2017, there's still a fleet of used supercars out there which perhaps could use some massaging at the factory.
McLaren does the same with its F1s, and it's not like Pagani is new to this task.
Two years ago, the team at Modena restored Prototype 2, the Zonda known today as "La Nonna." The oldest Zonda in existence has traveled more than 620,000 miles as a test vehicle, starting its career as a C12 in 1999.
In later years, its 388 horsepower 6.0 M120 engine got swapped to a 7-liter, and Pagani kept upgrading it with various new components all the way until the 760 came out. The factory restored it for Horacio Pagani's 60th birthday, tweaking it with a few features off the Cinque in spirit of its history.
Now that the company is joining the restoration business through "Pagani Rinascimento," Horacio commented that "to bring back the light and the original splendor of these masterpieces, is a pleasure as well as a great responsibility." And, some hard work, which will always include just one car at a time, with Pagani documenting the project through images, drawings, and technical data collected in a personalized Pagani Rinascimento Book. Because collectors dig that.