This larger patterned front panel also could be updated aero decision. Some recent aero studies have shown that a full-patterned type fixed panel in the front stagnation area actually creates less drag than a smooth panel. It "trips" the boundary layer and improves attached air flow, something similar to the golf ball dimple effect. Also, I think Audi dimpled the e-tron's bottom panels for a similar effect. I believe all of GM's new Ultium-based EVs have some sort of patterning on their large front grille panels, usually styled in the specific brand's design language.Its possible they have discovered the need for more cooling system surface area, I have noticed my Hummer with the clear roof panels, on a hot day, and after DC charging, has trouble keeping the interior cool. I have tried to figure out if this is related to the HVAC system, or the solar radiation that gets through the roof panels? My recommendation to people like @azbill living in AZ or other hot areas, avoid those clear roof panels a lot of heat comes in through those, much more than our Audi, or Tesla which both have large glass roofs (heavily tinted).
Also, most current-generation EVs now pull all their TMS air flow from a narrow long grille just above the bottom-front air dam. This grille will have motorized active shutters behind it to throttle or close off the opening as dictated by the TMS logic. This is an aerodynamically-ideal location to put it, as then the TMS, when active, captures some of the air that would otherwise flow under the vehicle and increase drag. Zooming in on that image, there appears to be some openings in that area on either side of the front license plate. @Nebula1701 , did you happen to notice which "grilles" actually were air grilles which were "fake"?