Only had my 2013 CX9 for a few months but have noticed now that the 3.7 is not the quietest motor from 0-30. Maybe this is just normal and how motor is but I wouldnt say its a smooth pleasant sound compared to other v6 cars I have had like a pathfinder, maxima and 3.5 motor in 2008 odyssey. Just sounds more coarse in nature. Not flooring it but normal acceleration from stop to say 30mph. It is a quiet car at cruising speeds but more just doesnt have smooth sound. I would even say at punching it to pass at 40-55mph is a coarse sounding engine. Just curious what others think?