Same old GM in EV clothing, LOL
GM's battery pack is nearly a foot tall, (See EE video), so the sills are level with the tops of the tyres.
The low slung CT has it's sills level with the top of the hubs. It's battery is obviously much more compact, resulting in easy entry and a lower cg. As a result, CT doesn't need side steps that add weight, drag and cost.
The Hummer's tailgate is level with the tops of the tyres FFS
Forget about getting anything in there ever. This is the really dumb thing about American trucks all together. Not only is the load floor impossibly high, but when you open the tailgate you have to stand two feet back from the cargo area. CT was criticized for not allowing side loading of the tray, the HEV's tray is about 70" off the ground LOL.
Aerodynamics of, well, a Hummer. No attempt to blank of the front wheel, we all know how draggy an offroad tyre exposed the the wind is. Draggy three box styling, too steep windscreen, elephant ear mirrors...
Body of frame construction means it will be heavy.
If you're one of the few outside of Youtube to take it off road, it still has the easily scratched and dented soft skin of a regular car. Someone put a minor dent in my van's quarter panel a while back, took three weeks and US$5k to repair.
All that for for only $40k more than a CT...and if you know anything about Tesla, the only real option you can add is FSD. GM are the ones who will gouge you on 'options'.
Finally, why the 'lunar' theme? It makes absolutely no sense. Are they really just taunting Musk? You built the lunar rover 60 years ago, and now you come out with this?