Here's the range test video they posted for those that haven't seen it yet.
insideevs.com

2022 GMC Hummer EV Pickup Edition 1: InsideEVs 70 MPH Range Test
We fully charge a 2022 GMC Hummer EV pickup Edition 1 and drive it at a constant 70 mph to find out how far it will go before exhausting its battery.
