Here in Spain it is the same, 4, 6, 9 and 20 pieces
I think the most interesting global evil megacorp franchise country might be Japan. On one hand, the Americana brand is very strong, on the other hand there's no way US sizes would work in Japan.
In the end (if things haven't changed in ~13 years) McDonald's/Burger King end up being almost as raw a deal in Japan as in Norway. Of course in Japan, you get much better service. That's just the way Japan works.
Can you really get a beer with your burger in Amsterdam?
You can in Spain, although unfortunately it's only available if you choose to eat your meal inside the restaurant ;P
I talk McDonalds in Barcelona province. The only problem is that the beer is Cruzcampo :P
I think you can't in Italy