FIRESTONE FIREHAWK FAILURE-WITNESS ADVISED WHILE ON HIGHWAY BEHIND POLICY HOLDER APPROX ONE TO TWO LENGTHS BEHIND INSURED. WITNESS NOTICED THAT THE LEFT REAR TIRE BOUNICING UP AND DOWN, WITNESS ALSO SAW PIECES OF IRE HITTING HER VEHICLE. INSURED LOST CONTROL. SINGLE CAR LOSS, INJURIES WITH NO MEDICAL COVERAGE. (CLAIM 75-A265-140) *MW