Just picked up my Red GTP coupe with Ebony interior on Monday Oct. 3. Love most of the features and the ride, the handling and most of all the get up and go. Removed the back seat head rests for better sightlines. I notice when in stop and go traffic after braking or coasting to keep up with the traffic flow that the resumption of power (pushing on the gas again) makes a defininte jerk or thump in the drivetrain. Wondering if this is normal on all G6 coupes. My last car was a 99 Grand Am Gt coupe and I never noticed this with it. Not sure if I am nitpicking or if this is due to slackness in the transmission or something. Any info would be appreciated.