Automobiles are shown for sale at a car dealership in Carlsbad, California, U.S. May 2, 2016. U.S. sales of new vehicles in March at major automakers came in below market expectations, according to figures released on Monday, sending shares of General Motors Co ( GM.N ) and Ford Motor Co ( F.N ) down more than 2 percent. The news also weighed on car retailer stocks. The March sales offered the market a glimpse of the overall health of middle-class American consumers. Car sales in America have risen ever since end of the Great Recession and hit a record last year of 17.55 million. Investors and analysts have been watching for signs that the current boom cycle has begun to wane. Trucks and SUVs pushed sales at some major automakers higher in March at the expense of cars as American consumers continued to shun smaller vehicles […]