GMC will build its first electric vehicle in 2021. That's when the Hummer EV will go into production. But the resurrected truck won't be the only EV in the brand's lineup. The GM-owned marque revealed that it will also offer an all-electric Sierra pickup, but there's no specific timeline for that vehicle yet.

"There will be an all-electric Sierra pickup, but no timeline yet. But, the plan is to make it electric; this whole electric thing is a moving target," Lynn Thompson, the president of a Buick-GMC-Cadillac dealership in Missouri, told the Detroit Free Press. Thompson added that the second electric truck was confirmed by GM executives during a national dealer meeting.

Although the Sierra is a popular model and an EV version with the same badge would be a good marketing choice, chances are this electric truck will be a standalone model. Chevrolet also announced plans to introduce an electric pickup in the coming years and the said truck won't be a Silverado, but a separate nameplate. It's safe to assume that the Chevy and GMC electric truck will be related, so they won't share much with the Silverado and Sierra siblings. The latter will probably remain the company's internal combustion core lineup that will probably include hybrid versions in the near future.

When will the Sierra-like EV arrive?

If it's more than that, GMC likely didn't get too far with development and a prototype is far from ready. This means that the production model won't be unveiled until 2023. The Sierra-like EV will probably hit the assembly line once GMC expands the Hamtramck, Michigan facility that currently produces the Hummer EV. GM is investing up to $2.2 billion into the factory and some of that will go into extending its production capacity to handle more than just one model.

Will the Sierra-like EV share components with the Hummer EV?

That's very likely and it would make sense in today's market when automakers are looking to reduce costs by sharing technology between different models. However, don't expect the Sierra-like truck to be as powerful as the Hummer EV. The second truck will be similar to the Hummer in size, so GMC will probably set the two apart by selling them in different markets. While the Hummer EV is a premium offering aimed at weekend off-roaders, the Sierra-like truck will be cheaper and aimed at common truck buyers and fleet operators looking for emission-free haulers.

The base Hummer EV will feature a dual-motor setup with 625 horsepower, so it's safe to assume that the Sierra-like truck will start with a single-motor variant of this setup rated below 400 horses.

It should deliver at least 250 miles of range. The 800- and 1,000-horsepower drivetrains will remain exclusive to the more expensive Hummer EV. The Sierra-like truck will alo be offered with a dual-motor, 4WD drivetrain, but it won't be as powerful as the Hummer.