Bro I tried everything. It is damage, not dirt. It needs replacement. Holes in gloss layer.
Maybe some eco retards sprayed something on it.
I overtook some of them before going to a grocery store a bit ahead. Few minutes later there is an old lady at the entrance screaming she nearly hit a car that stopped so someone could piss on "his" car.
Me and the 2 other dudes looked at each other, wondering if she was insane and if not, who did she mean?
Since it was real life and not baldurs gate, neither of us pursued dialogue.
What a time to be alive.
Best bet is to search/ask around at
autogeekonline.net. They are obviously partial to products that they sell, but last I looked, they have a bunch of pro or semi-pro detailers that post there, along with a bunch of people who are just into all those products and processes.
Unless you can find a bunch of complaints from owners, good luck getting the dealer/manufacturer to say it's their problem.
If it's etched into the top layer, it might be a complicated fix, but you may be able to cover it up for a year or two at a time with the right product. Maybe something like a ceramic coating over it would hide it well.
Brake fluid or break cleaner would have damaged the surrounding clear coat, at a minimum, so he should see marring in more than just that plastic. It may be there, but hard to see on that paint color. He should probably look up videos on how to find blemishes using hand held lights, since the Netherlands doesn't get much sun(?). The ammonia in urine may etch plastic and not clearcoat/wax (if that's what happened), or it may be something totally different, from a separate incident that didn't get noticed until now.
Many years ago, with a previous car, I had some dumbfucks putting soda or fruit juice down on a street race area to do burnouts in, cause they thought it would make more smoke. I was a couple cars back in line and got that shit all over the back of my car. Took forever to get off and some of it still left light marks. I didn't notice that it was anything more than road grime, until the next time I washed my car.