BACKING OUT OF PARKING SPACE IN SMALL PARKING LOT, CAR ACCELERATED OUT OF CONTROL. WOULD NOT STOP WHEN STEPPED ON BRAKE AND CRASHED INTO TWO OTHER CARS. REPORTED TO DMV IN CA, WHERE CAR REGISTERED, ALTHOUGH ACCIDENT OCCURRED IN NEVADA. CAR SEVERELY DAMAGED AND REPAIRED BY INSURANCE CO. LEXUS DEALER CHECKED CAR AFTER REPAIR AND BLAMED FLOOR MATS BUT WE DISAGREE. IF ANYONE HAD BEEN BEHIND CAR THEY WOULD HAVE BEEN KILLED OR INJURED. *TR