Thanks for bringing this up gwales - I would not have thought to have the check done, I'll get it done at 3 years old by a dealer. As long as that and the 5 year one is done, I'm not going to faff about trying to stop this from happening, they can give me a new wing if it does!
Mine is a Jan 2005 car and shows no signs of this - I think - I'm about to give the car it's pre-winter wax so will find out.
It's not just Alfa BTW - our 2001 Focus is a complete mess with rust all over the undersides of multiple doors and the boot - all common Ford issues. You would think the manufacturers would sort this out, these days
