Great point- neither have I. Otherwise, I’ve only seen a cloth/leather hybrid appearance pack seat on a dark horse in a video not seen on this forum but in the media release, they refer to base and premium GTs so that would be my leading assumption since it hasn’t been announced that the S650 is...
The integrated screens come standard on GT premium and up it appears. Leather seats only go in premium GTs, as far as I know. However, it's possible the wrapped/stitched dash and center console is a part of an upgrade package like 401a.
Appears as though it’s a GT premium, Dark Matter Grey, non-pp, non-active exhaust, space gray interior option selection with the black accent package.
Yes, they appear very close in hue but the difference visually appears to be flat vs metallic. The metallic flakes seems to make a big difference depending on the lighting.