The Mangusta came with either Magnesium or aluminum wheels and I have not been able to determine what was the deciding factor. Your thoughts that the earlier ones were magnesium might be correct. Your are right that the mags are much lighter and they do require special treatment. The aluminum wheels can be dealt with as any other aluminum wheel can.
There have been several posts regarding the refinishing of wheels (Pantera factory wheels are all magnesium) and Peter H seems to have done a lot of research into this area.
http://pantera.infopop.cc/eve/...700026924#8700026924
http://pantera.infopop.cc/eve/...560053035#3560053035
Good luck!
Mark
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