Why is this not available in the states - or is it? Is there a difference between thunder grey and panthera metal? Just like is there a difference between ghost grey and ceramic silver? Looking the Canadian vs. US sites, they sure look the same. I can see Kia using different names for color in different markets, Canada vs. US, but to actually produce different colors for different markets is a significant expense. Heck - why isn't red interior available on the dark grey we have in the states?