Audi of America will skip airing an ad this year, following the practice of fielding an ad all but one of the last ten years. It appears to be one of several car manufacturers including Honda, Mercedes-Benz, General Motors and Ford who are believed to be sitting out the game. Ad Age has reported that the brand had remained one of the few returning brands that had yet to confirm its presence during the game, though a spokeswoman from the brand finally did so to the marketing publication Friday...