STEERING COMPLETELY FAILED WHEN DRIVING IN CLEAR, DRY, MIDDAY WEATHER ON I-695 IN BALTIMORE. CAR WOBBLED RIGHT THEN LEFT. DRIVER TRIED TO COMPENSATE, BUT CAR RADICALLY OVERSTEERED AT FIRST. THEN, ON ITS OWN, THE CAR SHARPLY VEERED LEFT ACROSS HIGHWAY INTO CONCRETE WALL. SKID MARKS SHOWED CAR TRAVELING IN DIRECTION OF WHEELS, I.E. NO LATERAL SKID MARKS, SO WHEELS WERE TURNED TO LEFT IN SPITE OF ATTEMPTS TO TURN RIGHT. WE ARE TEMPORARILY HOLDING THE CAR FOR YOUR POSSIBLE INVESTIGATION. PLEASE NOTIFY ASAP. *AK