At the moment it looks like August as a Kmart exclusive:
http://www.otca.com.au/boards/showthread.php?t=4622
From TFWiki:
http://tfwiki.net/wiki/Vector_Prime
Vector Prime has some significant differences between the Takara and Hasbro releases. Takara's release uses a matte gray plastic with a lighter, burgundy-tinted brown, uses firmer plastic for his clear-blue parts, and has more intricate paint applications. Hasbro's release has a higher-contrast color scheme of white with chocolate-brown, more flexible clear-blue plastic (for safety reasons), and less-intricate paint applications.