By | July 03 2012 10:34 AM

Detroit's carmakers saw strong June U.S. car sales with Chrysler Group LLC, a subsidiary of  Italian Fiat SpA (Milan: F), reporting 20 percent year-over-year sales growth, General Motors Co. (NYSE: GM) reporting 16 percent sales growth and Ford Motor Co. (NYSE: F) reporting more modest 7 percent sales gains.