My older brother had a succession of Fiat 124 Spiders, all with rust problems that stemmed from Fiat unwilling to put any finish at all on unexposed areas e.g. inside the door panels and posts. So there was bare metal where condensation or water could reach it. Poor quality control. My latest car restoration is a 1965 Fiat 1500 Cabriolet and even though it is about as rust free as Fiats get, it still has rust holes in the rocker panels just in front of both doors. Sorry for the car talk on the firearms forum. Tom