lately my 300D has been performing in very poorly in terms of suspension. initially i thought it might be the struts gone bad, the car does bottom out ocassionally. however it does not really bounce wildly on bumps as is the case when the struts are bad. on the other hand i can feel evety crack bump and pebble on the street coming up through the seats in side the car as sharp blows. what coud it be?? any help would be appreciated greatly.