While GM has withdrawn most of its previously announced electric vehicle targets, the automaker believes its EV sales momentum is finally building thanks to an expanding lineup of

GM sold almost 21,000 all-electric vehicles in the U.S. during the months of July and August, giving it a significant boost in the EV sales race.

The COO of Ford's electric vehicle business unit said car shoppers don't fully realize the benefit of charging at home or having an in-vehicle generator.

GM sold more electric vehicles than Ford did in July and August. But Hyundai/Kia outsold them both in the first eight months of the year.