Yeah, I was exaggerating for effect. The point being that they are rare. They have double-decker ones in Hong Kong. http://www.youtube.com/watch?v=jHFizrDGlUo h

Yeah, I was exaggerating for effect. The point being that they are rare. They have double-decker ones in Hong Kong. http://www.youtube.com/watch?v=jHFizrDGlUo http://www.youtube.com/watch?v=jHFizrDGlUo