CONSUMER GOT INTO VEHICLE AND CRANKED IT UP, AND VEHICLE POPPED. CONSUMER TURNED ENGINE OFF,THEN CRANKED IT UP AGAIN. VEHICLE WAS IDLING. BUT WHEN CONSUMER PUT VEHICLE IN REVERSE, VEHICLE ACCELERATED BACKWARDS. VEHICLE WENT BACKWARDS, ACROSS MAIN STREET, AND QUIT IN A FIELD. STATE POLICE WROTE IT UP AS A MECHANICAL DEFECT, AND WOULD NOT LET ANYONE MOVE VEHICLE. VEHICLE BEEN SITTING FOR 10 DAYS. CONTACTED DEALER AND GOT NO RESPONSE.*AK