Audi has noted the struggling sales figures for the A4 Avant and the German automaker has decided that it was finally time to swing the axe on the failing model. The A4 Avant will be replaced by the A4 Allroad, which has just made its official debut at the 2012 North American International Auto Show. The 2013 A4 Allroad marks the name's return to the U.S. market after being on hiatus since 2005.