This is my third CTS, second with the new body. and on both my 08 CTS and 09 CTS I notice in Drive mode or sport mode the transmisson seems as if its searching for the right gear when I drive it aggressivelly. There is about a second or two (which seems like a life time) then it will find the gear and go. Of course I know I can go to shift mode and elliminate this but thought I would check to see if there is a fix for it. I am not sure if the G8 GT has the same six speed tranny but I was talking to a customer of mine and he said that problem went away when he did a chip down load for performance. Anything for the CTS?