They're both set to drop to low suspension height upon exit, so they should have been at the same height. I was more centered on the green one in taking the picture, so that might be the reason the black one looks lower? Notice that the Air to the right side also looks wider than the green Gravity which, of course, it isn't.
I've followed them both on the road. To me, the green one looks very muscular from the rear . . . but the black one looks downright menacing. And its stealth trim with the 22/23" wheels and those huge exposed brake rotors just add to the effect.
We drove from there to a cookie shop elsewhere in the mall. There was a guy with his family sitting at an outside table staring at the green one as it pulled in and leaning over to say something to his wife who also looked around. When he saw the black one pull in next to it, his neck almost snapped. He probably knew something about them, as he was in a blacked-out BMW i7. He never asked anything about them, though, as we walked past their table.