I think the silver one would make your alloys look larger still.
I think it is a practical option, the videos suggest it can take a fare bit of damage without affecting the wheel and yet with a supplied tool, you can scrape off the scuffed gator.
Clearly it doesn't beat a proper re-spray but as one who has spent about £400/year on my GT's 20" alloys (and its picked up some kerbing again on 3 of 4 alloys in the past 6 months, it might just be the more sensible way to do things.
My F20 has 17" alloys, so a bit more profile until of course we find a particular high kerb. Almost certain we will, comes with the territory.
PS: LOVE MINERAL WHITE - ESPECIALLY WITH THE URBAN WHITE GRILLES. Or did i mention that already??!!