2004 AUDI A3 Tires Problems

GENTLEMEN, PURCHASE A NEW 2004 AUDI A4, DROVE OFF THE LOT AND TRAVELED APPROXIMATELY 3 BLOCKS BEFORE THE RIGHT REAR TIRE BLEW OUT! TURNS OUT A FLAT 3" PIECE OF METAL COMPLETELY PIERCED THROUGH THE TIRE AND WHEEL! THIS CAR WAS ORDERED WITH A 18" WHEEL AND TIRE PACKAGE CALLED THE "ULTRA SPORT PACKAGE." AUDI CUSTOMER SERVICE WAS NOT INTERESTED IN LOOKING INTO THIS UNUSUAL OCCURRENCE BEYOND TALKING TO THE DEALERS SERVICE MANAGER. I EXPLAINED TO THEM THAT I HAVE BEEN IN THE AUTO BUSINESS FOR MANY YEARS AND HAVE NEVER SEEN SUCH UNUSUAL WHEEL DAMAGE. I HAVE SINCE FOUND OUT THAT I AM THE SECOND PERSON WITH NEARLY IDENTICAL WHEEL FAILURE AT THE SAME DEALERSHIP! I CONTACTED AUDI AGAIN AND INFORMED THEM OF MY FINDINGS. THEY STILL SHOWED NO INTEREST. I INFORMED AUDI'S REPRESENTATIVE THAT I WOULD BE CONTACTING YOUR DEPARTMENT AND ENDED THE CONVERSATION. IT IS MY BELIEVE...