I was going to suggest the UN flag as a compromise but in hindsight it is probably more appropriate to use the World Health Organisation emblemIneos is indeed British and not aware of local susceptibilities (excuses to the British friends on this forum, but my personal opinion): website for Belgium in German and French, and no Dutch ... what the heck, or how do you say in English?
It is a big mistake to put any flag on a global world car, they really are stupid. I want the Belgian, Polish, Brasilian and Hungarian flag on my car for very personal reasons... all countries are involved in the Grenadier building. And the Russian or Ucranian or Chinese or all of them.