Hi Tony,
It has been appraised by a Maserati main dealer who were as surprised as me at Maserati UK’s response. The garage is only a few years old so is insulated and dry, so no residual dampness and certainly nothing spilled on it. As it is almost every section of window trim, it re-enforces my belief that it is a faulty batch and not any undefined “external influences” as Maserati UK claim.
Photo of corrosion at the base of the A pillar trim attached.
Kind regards,
Alex