I think I brought up varying competition strenghts in the Atlanta or Texas GWC challenge - Completely forget which one it was.
I did bring up to Highbank some time ago the possibility of creating a Paint & Race Hotlap Challenge where you would paint a specific car for the at hotlap challenge. If we did that, and created a carset based off of that, perhaps we could do a GWC Challenge with across-the-board balanced competition.