[Hib Halverson]

The C7 rear fascia is growing on me, too.

Especially when I found that part of the "black" color outboard of the tail lamps which, in early spy shots and P'shop renderings, was thought to be flat black paint, is actually the exhaust vents for the transaxle cooling air flow.

It goes in the two inlets just aft of the rear quarter windows, flows around the transaxle then out those two vents. Like the front end cooling exhaust vents on the hood, that's good use of aero.