Underneath colors, paint, Chrome and zinc

Always the Android users that never know how to crop pictures when screenshot.

 

While not exactly what you are looking for given you have a 400i, the 330 style guide that @SCantera has offered may be of some help or at least give you some idea of exactly what your questions should be for specific parts

https://www.ferrarichat.com/forum/threads/ferrari-330-gtc-as-built-configuration-and-judging-guidelines.518002/

This seems condescending and not at all helpful.

 

I love the flush rear bumper (shown in the middle photo above) of the cars that stayed in Europe so much more than the extended versions we had to have in the US - so much cleaner and allows the tailpipe to extend past the bumper.

Anyone here converted the bumper back to stock using the US version?

 

Good day Andres,

Although not directly applicable, but when I was researching these details on my 365 GT4 2+2 I found a number of finish variances between various cars including my own car. After researching all of the finishes, reviewing a lot of the same or very similar models (including the 400GT), reviewing other f-cars in period, contacted a number of f-car restoration experts, I concluded that there was not an official or consistent Ferrari finish standard across a particular model. I believe that Ferrari simply used whatever parts were on hand (some that were shared with other ferrari models), or at times purchased or acquired parts that provided the best price regardless of the finish. I have no proof of this, but it does make sense to me and would certainly explain the surface finish variability.

That said, my car was very original (only has 15000 km) and so I prioritized its original finishes (that I could determine) over finishes that others have done. I ensured to take a lot of very specific and detailed photographs to justify my decision in case it was challenged. I would suggest you do the same and in cases where your original finish is lost or has aged/faded, then create a detailed list of these parts and ask what others have done for these finishes. I mention a detailed list, as there are well over 100 different parts, fasteners, brackets, etc that all have specific finishes and so it would be a lot of effort for others to answer a global finish request like you have done.

Cheers,

Sam

 

Only certain RIs extended the bumpers. In fact, most of them in the US retain their original European bumpers.