A lot of components rolled off the assembly line with bare finishes. To reproduce this, several companies have developed cast-finish or bare-finish paints that reproduce the look of bare metal. But its still paint, and the parts didnt come painted. Pioneer left all the original bare pieces au naturale. This posed a bit of a problem for the photo shoot, though. By the time we finally set up the shoot, the Florida humidity had caused bare parts such as the leaf springs and driveshaft to flash rust, and the trans case to oxidize. It was cleaned up for our photography, and will need to be every time its shown from here on out. Welcome to the wonderful world of concours maintenance, Randy! You can also see the natural exhaust system, and the ribbed muffler Randy scoured the country for.