U.S. auto industry sales fell short of expectations in March as car sales continued to plummet. Automakers sold 1.56 million new cars and trucks in March, a 1.6% decline compared with the same month a year ago. That would still work out to a strong annualized rate of 16.6 million cars and trucks for the year, but analysts had expected Monday's sales figures to be more than 1.62 million new cars and trucks — a 2.2% increase.