COMPLETE CAR FIRE. I WAS DRIVING ON THE FREE WAY GOING BETWEEN 70 AND 75MPH AND I WENT TO CHANGE LANES AND WHEN I LOOKED BACK IN THE REARVIEW MIRROR ALL I SEE IS SMOKE SO I PULL OFF THE FREEWAY ONTO THE SHOULDER AND I SEE A FLAME FROM UNDER THE HOOD. SO I POP THE HOOD LATCH AND I OPEN IT AND THERE WAS A FIRE COMING FROM THE ENGINE COMPARTMENT. SO I SHUT THE HOOD AND GO AND GRAB NECESSITIES OUT FROM THE VEHICLE AND WAIT FOR THE FIRE DEPARTMENT TO SHOW UP AND PUT OUT THE CAR. WELL WHEN THEY SHOWED UP, THEY WERE NOT ABLE TO SALVAGE ANY USABLE PART OF THE VEHICLE. AGAIN I WAS ON THE FREEWAY/HIGHWAY TRAVELING BETWEEN 70MPH AND 75 MPH