Volkswagen “remains committed” to its aggressive EV program, the automaker’s U.S. chief executive said. But, as sales growth slows, the German auto giant is also considering adding hybrids and plug-in hybrids to its American fleet. And it’s not alone. Other manufacturers who’ve made major commitments to EVs, such as Kia, are also turning to hybrids to help them meet emissions targets because of consumer resistance to all-electric vehicles.