In my mind it screams "big for the sake of big", not efficient or environmentally friendly...
Husband wants a Model 3, wife wants 4Runner (or vise versa, point is that they want totally different things), joint bank account wants absolutely nothing to do with either. GM swoops in to save the day by checking the snazzy EV and the practical SUV sets of boxes at the same time at a typical GM price point.
The real nuisance with high elevation is getting enough air over the heat exchangers to not overheat or heat soak the intercooler, air:water would be desirable.
The GM 'consumer' Hummer was basically a pseudo milspec hummer and this new EV version will presumably be a similar marketing effort. https://en.wikipedia.org/wiki/Hummer_H2
H2 EV is to Cybertruck as used Ford Ranger is to CPO Tacoma. The owners of the latter will turn up their nose at the former if they cross paths at all. They're mostly disparate buyer demographics.
American sustainability: ev hummer
1. Electric vehicles are a terrible fit for military operations
2. The actual HMMWV is a steaming pile of garbage. Not sure why the US Gov would want to buy an expensive version of the same thing
3. The HMMWV was recently replaced by the JLTV - it'll probably be at least 20 years before the next refresh cycle
Electric Malibu: Totally makes sense
Electric Cadillac: Wow, forward thinking!
Electric Corvette: Whoa, world changing
Electric Hummer: But I. But we. Wait. What?
And it competes with the Cybertruck, and they don’t have to worry about a limited amount of space for the batteries. Seems like a good strategy to me, for a first attempt.
That said, an electric hummer could be a perfect fit for the hummer stretch limo market. Though idk if that market is big enough to warrant its own whole thing.