Ok is a 57 gt, recently purchased and my first alfa. Every thing perfect and in great condition. Gave it a good hour pre sale checking her over. However driving home from work and noticed a small rust line on the back edge of the bonnet. Was the next day after having it cleaned so thought the pressure washer might have chipped the paint off. Got home and had a closer inspection. A 5mm section of edge had all paint down to the metal. happened to glance at the wiper arm and low and behold a matching groove cut into the wiper arm. First off can't believe I missed it, but eh oh, secondly has this happened to any one else? Is worn to clearance now so worried if I get a new arm it will now rub and damage to paint repair?