i took an 04 convertable out for a test drive. it has the sport/touring swt. i noticed no real difference on the highway that i used. mostly straight but bumpy. when i tried a turn and hit bumps the car seemed to want to jump around. my son's 01 z06 doesn't react like this car did. is it possible the sway bar links are the culprit. there weren't any suspension noises on the bumps and the car has 45000k on it. any idea woulld be appreciated as a negotiating tool.