2004 LEXUS RX Wheels Problems

WHILE DRIVING ON A CITY STREET, THE CABLE HOLDING THE SPARE TIRE (SPARE TIRE CARRIER PART #51900-0E012) UNDER THE CAR, BROKE AND SPARE TIRE AND ACCESSORIES FOR IT FELL INTO STREET INTO TRAFFIC CREATING A HAZZARD

RECENTLY, WHILE DRIVING DOWN THE HIGHWAY, MY 2004 LEXUS RX 330 STARTED MAKING A "HOWLING" SOUND (FOR LACK OF A BETTER DESCRIPTION). UPON HEARING THIS DISTURBING NOISE, I IMMEDIATELY DROVE IT RIGHT TO MY LOCAL DEALERSHIP (IRA) IN PEABODY, MASSACHUSETTS. THEY DETERMINED IT WAS THE BEARING AND HUB ASSEMBLY IN MY LEFT REAR WHEEL. I WAS TOLD THIS IS A VERY DANGEROUS CONDITION THAT MUST BE REPAIRED IMMEDIATELY. THIS ENDED UP COSTING ME $676.87 (11/14/14). THIS ISN?T THE FIRST TIME THIS HAS HAPPENED WITH THIS CAR. IT HAPPENED MARCH 3, 2011 AND IT COST ME $704.35 THEN. I HAVE HAD AT LEAST 6 CARS DURING MY DRIVING HISTORY AND NONE OF THEM EVER HAD ANY BEARING AND/OR HUB PROBLEMS AND THIS HAPPENS TWICE WITH SAME CAR??? IT IS IMPORTANT TO NOTE THAT MY PREVIOUS CARS WERE LESS EXPENSIVE CARS; BRANDS THAT MAY BE EXPECTED TO HAVE MORE ISSUES THAN LEXUS;...