Cadillac Sixteen V12 It's official. It's been confirmed: Cadillac is preparing a new V12 flagship. That's straight from the mouth of our favorite man in the business, Bob Lutz. On a recent trip across the pond, GM's venerated product guru confirmed in an interview to the British car magazine AutoWeek that they are indeed working on a twelve-cylinder engine, slated to power a new range-topping, import-beating "Cadillac of Cadillacs" a super-luxury-sedan to rival the likes of the Mercedes S-Class and Lexus LS in the grandest of American style. Cadillac Sixteen V12 cadillacsixteenv12 in Public bookmarkswith autoautomotivecadillacnewssixteenv12