WHILE DRIVING ON A CLEAR DAY, NO WET ROAD, ETC., ON SATURDAY SEPTEMBER 4, 2004, MY 1996 INFINITI I30 MYSTERIOUSLY WENT OUT OF CONTROL, WENT INTO A SLIDE, CROSSED A TWO LANE HIGHWAY, WENT DOWN AN ENBANKMENT, FLIPPED OVER, AND CRASHED TOP-FIRST INTO A TREE; DRIVING THE ROOF INTO THE DRIVER'S SEAT. THE AIRBAGS NEVER DID EMPOLY. THE INVESTIGATING OFFICER DID NOT ISSUE A CITATION SINCE HE COULD NOT DETERMINE THE CAUSE FOR THE CAR GOING OUT OF CONTROL. I WAS CHECKED FOR SOBRIETY, ETC. AND IT WAS DETERMINED THAT I WAS NOT IMPAIRED. ALL TIRES WERE IN EXCELLENT CONDITION, THERE WAS NOT A TIRE BLOWOUT. THE FRONT WAS ALIGNED ABOUT 6 MONTHS AGO. THE TIRES WERE RECENTLY ROTATED AND BALANCED. THE RIGHT FRONT TIRE WAS REPLACED AT THAT TIME BECAUSE THE TIRE HAD A SLIGHT INDENTATION DUE TO POSSIBLY HITTING A SIDE WALK CURVE.*AK