PROBLEM WAS THE UNDERCARRIAGE SUPPORT, LITTLE OR NO PROTECTION FROM ESSENTIALLY A DROP, CAR "LEAPED' OFF EMBANKMENT BOTTOMING OUT. THE RESULT WAS SPINAL TRAUMA TO THE OCCUPANTS. VERY LITTLE SHOCK ABSORPTION IN THE SEAT OR SUSPENSION. THE CAR ROCKED BACK AND FORTH, FRONT AND REAR BUT THE SUDDEN IMPACT ON THE UNDERCARRIAGE WASN'T ABSORBED.