This is great, you're an awesome tour guide! Thanks for sharing your wonderful vacation pics with us!
EDIT: I forgot to mention that we also have the same coloured taxis here in my country and it's true most of them are Mercedes Benz.
All taxi cabs in Portugal used to be dark green and black in colour, but some years ago they changed for that cream colour.
Since they also have them in Germany, maybe it was some rule made by the European "big bosses in charge" to have the standardized cream colour.