This business continues putting up strong numbers, which has helped drive investor returns. Ferrari (RACE 0.15%) just reported financial results for the first quarter. They were positive as revenue and adjusted diluted earnings per share rose 11% and 20%, respectively, compared to the year-ago period. But some investors might have been disappointed by the fact that management maintained its full-year outlook. This unstoppable automotive stock has soared 188% just in the past five years, while the S&P 500 is ...