Yes, there is an additional green 'band' within the Eco range on the "tach" dial. I guess this feature never made it into production -- at least for NA cars. Too bad.I remember seeing this as well in some of the first pictures and videos when CT was unveiled. But just like the pictures at the top of the website, I believe they aren't North American models. I believe this is what your talking about.
It isn't North American because it only has km/h and not mph.