Overall diameter of wheels/tires will affect it. As will the age/wear of your strut/springs. I agree that your car does look lower than mine or his stock though. You didn't buy the car new did you? Have you physically checked the strut or spring to make sure they are not aftermarket? There are too many factors that decide how a car sits.

99 SVTC, T-Red, #652/2760-12.8.1998 Mother#@%@!* did I sound abstract? I hope it sounded more confusin than that!