2011 LEXUS ES Engine Problems

AT APPROXIMATELY 6:30PM, WHILE MAKING A RIGHT HAND TURN INTO A FRIENDS DRIVEWAY, THE VEHICLE SUDDENLY ACCELERATED ON IT'S OWN, AND THE BRAKES WOULD NOT WORK. THE VEHICLE CONTINUED TO THE RIGHT AS IF LOCKED IN TO THE RIGHT HAND POSITION, HIT A TREE AND FINALLY CAME TO A STOP BY HITTING HIGH CONCRETE STEPS. THE VEHICLE WAS TOWED TO THE DEALERSHIP, AND LATER TO THE BODY SHOP AS THE VEHICLE WAS NOT DRIVABLE. DURING THE INTERIM, THE VEHICLE WAS INSPECTED BY TOYOTA. POST INVESTIGATION, THE LETTER RECENTLY RECEIVED FROM TOYOTA STATES "DURING THE LIMITED TEST DRIVE ACCELERATING AND BRAKING TESTS WERE CONDUCTED AND THE VEHICLE PERFORMED WITH NO ABNORMALITIES FOUND". THE VEHICLE WAS NOT DRIVABLE PER THE MECHANIC AT THE DEALERSHIP AND THE MECHANIC AT THE BODY SHOP, DUE TO THE SIGNIFICANT DAMAGE AND FLUID LEAKAGE. THIS LETTER FROM TOYOTA'S INVESTIGATION IS INCONGRUENT WITH THE FACTS AS I KNOW...