US light vehicle sales in 2003 could fall by a half million to 1.2 million units, or as much as 7%, if the U.S. fights a war with Iraq, an analyst said, according to Bloomberg News. Car and truck sales in 2003 should reach 17 million, unchanged from 2002, without conflict, George Magliano, director of automotive industry research at Global Insight, (formerly DRI-WEFA) told Bloomberg News.