The Hummer’s electric motors will produce up to 1,000 horsepower, enabling it to go from zero to 60 miles an hour in three seconds.
The Hummer will also have astrikingly high 11,500 pound-feet of torque. Torque is a measure of raw pulling power. For comparison, a GMC Sierra 3500 Heavy Duty pickup with a diesel engine can produce 445 horsepower and 910 pound-feet of torque. That Sierra Heavy Duty truck, with a small fraction of the torque of the Hummer, can tow up to 14,500 pounds, according to GM.
There are many factors involved in towing besides just torque, of course, and a General Motors spokesman said more details about the Hummer’s capabilities will be revealed on May 20, when the electric truck is fully unveiled.High torque figures like the one GM released for the Hummer EV aren’t terribly meaningful, said Michael Bream, founder of EV West, a California company that converts classic cars into high-performance electric vehicles.The power of rapidly spinning electric motors — they can go much faster than gas or diesel engines — can be multiplied through gears resulting in high pulling power at low speeds, he said.But the actual use of that power is limited by factors like the tires’ ability to gain enough traction to move a heavy load, he said.
It would be much more useful to know the truck’s towing capacity, as well as its range and how much cargo space it has, he said.
“For most of us, that’s going to be like a 7,500-pound trailer that you go camping with, right?” said Bream. “So what really, really matters is how far can you go on one charge with an average size trailer behind you.”
Those sorts of figures would be revealed in May, a GM spokesman said. This new Hummer EV will be sold as a GMC truck. GM is not resurrecting the separate Hummer brand, which it shut down in 2010 amid bankruptcy restructuring.
The original Hummer brand was controversial because of the poor fuel economy and imposing appearance of the enormous lane-filling Hummer H1 and the large Hummer H2. The earliest Hummers, made by a company called AM General, were civilian versions of military vehicles called Humvees, short for High Mobility Multipurpose Wheeled Vehicle. GM licensed Hummer in 1999 and designed new models with a look reminiscent of those military trucks.
The new GMC Hummer EV will go on sale in 2022 and is expected to be sold in small numbers, a source at GM said earlier this year. GM has not yet revealed what it will cost. The truck will be built in GM’s Detroit-Hamtramck assembly plant devoted entirely to making electric vehicles. GM’s self-driving Origin electric car will also be built there.