Originally Posted by RLHMARINES
Maybe....Maybe not......I found this while watching the video posted by GM on a prototype for SEMA...
It say's wheel size 20 x 10
and 20 x 11 via Z/28 blanks
...check what's written under suspension in the video.
Zoom in at 2:03
of the video below:
That leads me to believe the Z/28 will have 20x10s in the front and 20x11s in the rear but that those are not necessarily what they look like. "Blanks" are what a wheel is before anything has been machined.