WHILE DRIVING AT ABOUT 60 MPH HEARD A RATTLE. AS CONSUMER WAS PULLING OVER, HEARD A THUMP. PISTON WENT THROUGH THE ENGINE BLOCK. CONSUMER OPENED HOOD AND THE ENGINE WAS ON FIRE. TOOK VEHICLE TO DEALER, AND THEY WERE NOT VERY HELPFUL. ANOTHER MECHANIC SAID HE SAW FOUR OR FIVE DIFFERENT SATURNS THAT HAD SAME PROBLEM WITHIN A MONTH. *AK