It's found on Toyota website (including when you build a Five) and everywhere throughout here. They're the same factory 17" used on the 2010/11 Five.
I have them -- they do not look much different then the regular wheels w / caps. Nothing special. I'm not a fan of HC's
A darker grey version of the 2010/11 factory 17" wheels? Never knew that. Any pics? Is it as dark as the gunmetal color of the Plus rims?