With gasoline prices in a constant state of flux, fuel economy continues to be a top consideration for new-car shoppers. As more hybrid cars and electric vehicles (EVs) come on the market, efficient car shopping is more complicated than ever. In addition, small diesel cars and compact gasoline-powered cars have improved vastly over a few short years, adding even more choices to the list of legitimate green vehicles. Here you’ll find green-vehicle reviews and the latest stories of interest to those concerned about fuel economy, hybrid vehicles, electric vehicles and CO2 emissions.