With Plug-Ins and Hybrids Dominant, Is Diesel Dead in the U.S.?

German automakers Volkswagen, Audi, BMW and Mercedes-Benz are selling their newest “clean” diesel vehicles nationally, including in California—home of the 2009 Los Angeles Auto Show—a state that, historically, with its air pollution regulations, has been hostile to diesel cars.
But even the auto companies with umlauts on their computer keyboards are making plug-in electrics and hybrids [...]