Both of my Peugeots, when I had them, they were 505 "s" models with alloy wheels. I was regularly having to go the dealer to buy replacement missing lug nuts (noticing I'd been driving around on 3 for God knows how long). Given the design of the rotating collar and the aluminum construction, my deduction was that the lug nuts were over-torqued by the rubes at the local gas station when replacing the snow or summer tires. That, and having had the experience of trying to change a tire, when the nuts were so tight I bent the lug wrench standing on it, trying to loosen the bolts. (Had to call for reinforcements on that one... brother's wedding day of course). Anyone else have this experience? I know the east coast corrosion was really hard on these wheels as well. The alloys on the '82 were painted over, even at 1 year old when I got it.
Sorry to be asking so many questions, but I am trying to get another 505s to fulfill my dreams, so I am trying to educate myself. There were no fora (or internet for that matter) when I had my last one.