The trunk is half the size, I hope its not a hatchback, but does look like it. The car looks a lot like the early 90's mustang before the fox body. They may be just cutting the camo holes just to fool the camera. Just a guess but the Zl1 did not sell well in 2014 do not think they are carrying over. But do think they will have the SS with about 475HP.
The muffler looks like the one pipe into two exhaust. That could be a V6. Maybe twin turbo v6 like the new GT40