That is what's known as "damp desert". It's the smell you get when a really dry state's dust experiences the winter damp of the UK.
Also, depends on the Krylon. Whatever takes it off will also likely remove the silver, too. However, you may find that the original silver has gone porous like mine on the GTA had; in which case there really isn't a way to save it.
Whatever it was the smell has left the building now I think maybe Elvis has been hiding under the spare since 77?
If the silver cannot be saved im ok with it,I just want to try just incase? Dont really want to go gung ho and take it all off.
If I do remove it im looking at
Trunk,Hood,Roof,Two Doors 1 Rear Fender,1 Front Fender
Might sound a bit random but its had a Fender Bender in its past so drivers side Fender is beige anyhow,passengers side rear fender needs pulling as it had multiple dents and to get a weld puller on it I will be going dont to bare metal.................
The bumpers are beige too so its really only 2 thirds not all