Here are three stocks with buy ranks and strong growth characteristics for investors to consider today September 16th:CarGurus (CARG) : This online automotive marketplace which connects buyers and sellers of new and used cars, carries a Zacks Rank #1 (Strong Buy), and has witnessed the Zacks Consensus Estimate for its current year earnings increasing 11.7% over the last 60 days.CarGurus has a PEG ratio of 1.03 compared with 1.08 for the industry. The company possesses a Growth Score of A.Norwegian Cruise Li ...