Even as gas prices continued to rise across the United States, sales of electric vehicles fell in April. That is in contrast to strong growth elsewhere in the world, such as Europe. But American drivers are gravitating toward at least one more efficient powertrain: hybrids.  Sales of new EVs fell roughly 18 percent from March to April, according to the latest data from Edmunds, an auto research firm. Another company, Cox Automotive, pegged the drop at closer to 6 percen t. Either way, experts said it’s clear that high gas prices aren’t leading to a significant shift toward EVs.  “There was a lot of window shopping,” said Ivan Drury, director of insights at Edmunds, noting that searches for electrified vehicles on the company’s site were strong. “It did not translate to tire-kicking and purchases.”  Price remains the steepest barrier for most people, said Drury.…