Put this together for you guys to use as a reference:
Like many of you here, I very curious to see what Skyscraper grey will look like. After looking at the swatch, as well as paint samples from touch up paint I found a few things.
Using Brooklyn as a baseline, Skyscraper is slightly warmer (more of a neutral grey). It has brighter highlights, and much deeper shadowing. This will translate to contrast, bringing out the body lines of the G80 more.