My new Roadster had been left out for a few days and there's rust all over it. Including the new 'option' round mirrors. I've been gradually cleaning if off with a lot of elbow grease.
The hardest thing, although not rusty, is the alloy fuel cap which has become very marked.
Alloy cap will polish up nicely with solvol autosol, all chrome, ie mirrors, door handles, headlamp bezels etc need to be vaselined before they come in contact with road salt
You know it makes sense! 
