Yeah, because taxis (cabs) differ in terms of color pattern in each city.
So what color are they where you're from?
In Barcelona they're mostly black with yellow doors
![Big Grin](http://www.japanforum.com/forum/images/smilies/biggrin.gif)
They got a taxi sign on top and show a green light when they're available and red when occupied.
Do include pics if possible ^^
![](http://www.campusanuncios.com/picanuncio/trabajo/trabajo837817044.jpg)