I’d love to do something similar, but the Greek law doesn’t allow it. The car registration must clearly state the manufacturer color(s). Try describing/putting the graffiti into this field :-) We’re not even allowed custom license plates.
Are you sure? In The Netherlands you must notify the government if you change the color of the car so they can update the registry, if there's any doubt they'll help you pick.
The list of colors is finite and based on EU law[1][2], so it would be odd if Greece didn't share the same system. It would mean you couldn't import re-painted vehicles into Greece, maybe that's true, but that seems like it wouldn't fly with the single market.
The car in the article clearly has a base color of "yellow". On my street there's a car completely covered in stickers, to my eye it's mostly white, but looking it up I see it's registered as blue (barely any blue visible). So perhaps covering it in stickers is a way to get around this in some areas of the EU.
2. It's: blue, brown, yellow, gray, green, orange, violet, red, white, black. Anything not listed must be whatever color is closest, e.g. pink is either "white" or "red" depending on if it's light pink or not.
I wonder what they thought about the 1996 VW Harlequin Golf, which was several different colors from the factory. (but they did have an official "base" color)
There must be an "other" option, or at least, everyone who has to use the database will soon learn that when the model is "Harlequin", "yellow" doesn't quite mean "yellow".
Changing the color is allowed, but you can’t have graffiti or fancy designs(flames, clouds, waves...). You’re right about the stickers, they’re allowed but haven’t seen any fancy designs, mostly lines, stripes and a few numbers. I’m sure that if the whole body was covered you’d get into trouble here.
Some searching around on YouTube [1][2][3] reveals a bunch of cars on greek plates with mixed paintjobs, fancy designs, stickers etc. Some of those (especially 70s muscle cars) are stock from the factory, so perhaps there's an exception for that, a bunch of the rest are not stock. I don't know the situation in Greece, maybe you're wrong, maybe they re-paint them to pass inspection, bribe the cops, or the cops don't care etc...
That's a surprise for me, in Germany you can do whatever you want color wise without having to update the car license. If a car comes with multiple colors from the factory the documentation says "multi-colored"