AP: Cars and trucks averaging 62 miles per gallon? Seems extraordinary now, but the government suggested Friday that automakers could be required to build lineups like that by 2025, making today’s high-mileage hybrids seem conventional and turning gas guzzlers into mere relics. It’s all included in potential efficiency ranges the government is considering for new cars and trucks starting in 2017. By a decade and a half from now, in 2025, a carmaker’s fleet of new vehicles may need to meet …