Vibrations occur when exceeding 50 mph. these vibrations extend to the steering wheel, floor, and driver and passenger seats and increase as speeds becoming enhanced in speeds over 70mph. no accidents and regular dealer service. have had multiple balances, alignments and 2 new sets of tires to no avail. car presently in dealer repair for greater than 8 weeks trying to fix problem. i was informed that the entire front suspension needed to be replaced. *tr