STRUCTURE OF 2001 F150. MY LATE HUSBAND SUFFERED MASSIVE HEAD TRAMA WHEN THE F150 HE WAS DRIVING WAS STRUCK HEAD ON WITH AN ISUZU DELIVERY TRUCK. THE TRUCK BURST INTO FLAMES AND CONTINUED TO BURN OUT OF CONTROL. IIHS AND DATELINE REPORT THE STRUCTURE OF THE TRUCK IS UNSAFE AND COULD RESULT IN MASSIVE HEAD TRAMA INJURIES.