Dave is correct. I called & they checked, no air for sure. How could GM be so stupid to build a coupe with no air. The old 60's Corvette coupes had a rear vent fan because of the unbearable heat in the rear glass area. The car is from the GM auction & is awaiting shipment.
I had a 79 Z-28, all black with a T-Bar roof, no air. It was OK, but on some day's it was a sweat box. & that was 30 years ago. Our summers are much hotter now.