So, not that the transmission has ever been completely smooth but it's become obvious over the past few weeks that my transmission is making a good shudder occasionally when going from gear to gear. It seems completely random as to which gear, whether car is warmed up, etc. I'm a pretty frequent user of Sport mode. And I even had my drive settings so that normal "D" was comfort mode for a while. ANyone experience this had have a resolution? I'm at 74k miles.