People have "hack-sawed" the salt-free, ribbed white metal Bonneville trim (longer car) to fit their '64 Parisienne Custom Sports. Depending on how good you are at fit & finish, it can be done.
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Prince Edward Island
'64 Parisienne CS "barn find" - last on the road in '86 ... Owner Protection Plan booklet, original paint, original near-mint aqua interior, original aqua GM floor mats, original 283, factory posi, and original rust.