Just foundt this pic that shows how aluminum looks like on a real P-38:
I'm wondering why IPACS changed the way some metals looks like in Aerofly 2. In Aerofly 1 you could see environment reflections on some aircrafts surfaces, giving them a chrome look. They were fake reflections, but quite effective. In Aerofly 2 there are no chrome metals at all.
Maybe IPACS could explain the reason for this changes.