I stored my '68 Lotus 7 then my '73 911 RS (clone) in a carcoon. It's presently housing My Mk1 Mini - no corrosion issues .
It has two added benefits:-
(1) it affords a degree of protection to the vehicle stored - less chance of accidental dings or scratches in a cramped garage and
(2) It keeps out the mice ( I live in the country)
( When the mice ate my ski boots I was annoyed , when they ate my crash helmet I was really cross , but when they ate my Ferrari I was apoplectic )