2011 Punto paintwork issue

[stephen2929]

Hello
Paintwork on my daughters white 2011 Punto Evo has always been in good condition.
Just the usual stone chips and scuffs from being 13 years old

However in the past week or so, something (or someone?) seems to have damaged the paintwork, and the 'semi transparent' gloss outer coat is pealing, but only in a few places, as though something corrosive? attacked it.
Unlikely to be gritter related as would have happened in earlier cold spells
Ditto frost damge as was fine earlier in the year in earlier cold spells

And if sun damage then would expect it to be occuring in patches all over (and we havent had strong sun since last summer)

The actual white paint underneath is ok

Just wondered in any experts on here could comment on this.

Thanks

 

[stephen2929]

Its like something has dripped on it (especially the roof bit)
Strange the rest of the roof and all the bonnet is ok

Maybe splashes from being behind some lorry/tanker etc transporting chemicals?