2000 BMW Z3 Structurebody Problems

Rear subframe suspension weld bolt crack from the body subframe, Can observe on the truck of the car the fracture weld bolds. Critical, because it hold on site the differential and rear drives components.

ON 24JUN2011, I SWERVED FROM A PARALLEL LANE TO AVOID BEING SIDESWIPED. NO CONTACT WAS MADE BETWEEN VEHICLES. HOWEVER, I NOTICED A NOISE COMING FROM THE REAR OF THE VEHICLE. THE VEHILE HAS A MANUAL TRANSMISSION. I TOOK THE VEHICLE TO AN AUTO BODY REPAIR SHOP. AFTER EXAMINING THE VEHICLE THEY TOLD ME THAT: THE FLANGE/BRACKET THAT HELD THE DIFFERENTIAL IN PLACE HAD A COMPLETE HAIR-LINE FRACTURE; AND, THAT A SUBSTANTIAL NUMBER OF SPOT WELDS HOLDING THE BODY ON TO THE FRAME HAD FAILED. I MADE CONTACT WITH THE LOCAL BMW DEALERSHIP MCGRATH BMW, OCATED IN WESTMONT, IL AND TOLD THEM OF THE INCIDENT. THEY STATED THAT THEY DID NOT UNDERTAKE BODY REPAIRS AND DIRECTED ME TO A FIRM WHICH DID ALL TYPES OF BODY AND STRUCTURAL REPAIRS AND WAS ACCREDITED BY BMW. I WAS GIVEN AN ESTIMATE FOR THE REPAIR OF BETWEEN $5,000-$6,000, AND WAS TOLD THAT THERE WAS...

I HEARD A CREAKING FROM THE REAR OF MY CAR, I PUT IT ON JACKS TO CHECK IT OUT. TO MY SURPRISE I FOUND EXTENSIVE DAMAGE TO THE FLOOR PAN MAINLY AROUND THE DIFFERENTIAL MOUNT. THE CAR IS UNDRIVABLE., BUT YET BMW WILL NOT TAKE FULL RESPONSIBILITY FOR THE MATTER. I SEE IT AS A SAFETY ISSUE AS IF I DID NOT CHECK IT AND CONTINUED TO DRIVE THE CRACKS AND TEARS IN THE BODY METAL THAT EXIST COULD HAVE CONTINUED EVEN FURTHER AND LED TO AN ACCIDENT OR WORSE. I WAS ESTIMATED AT A WHOPPING 5200 DOLLARS WHICH BMW SAID THEY WOULD ONLY PAY 3000 OF. I BELIEVE IT IS A MANUFACTURER DEFECT, SO IT SHOULD BE PAID IN FULLY BY THE COMPANY, BUT THEY WILL NOT STAND UP THE THEIR FAULT. I HAVE AT THIS TIME NO CHOICE BUT TO DRIVE THE VEHICLE IN ITS CURRENT STATE, THERE...