2015 MASERATI GHIBLI Power Train Problems

I WAS DRIVING ON I-10 NEAR PALM SPRINGS, CA FEBRUARY 27 AT ABOUT 12:10 AM. I PASSED A SEMI-TRUCK BY MOVING TO THE LEFT AND ACCELERATING. AFTER PASSING THE TRUCK I MOVED BACK TO THE SLOW LANE AND NOTICED THE CAR WAS TRAVELING VERY FAST. I BEGIN BRAKING THE CAR TO SLOW DOWN AND REALIZED THE CAR WAS ACCELERATING ON ITS OWN. THE BRAKING WAS NOT NOTICEABLY SLOWING THE CAR ( AND AS YOUR RECALL CITES IT SHOULD, THE BRAKING DID NOT DISENGAGE THE ACCELERATOR.) I THEN PLACED THE TRANSMISSION IN NEUTRAL. OF COURSE THIS SOLVED THE IMMEDIATE PROBLEM. NONETHELESS THE ENGINE WAS STILL RACING AND I THEN HAD TO WEDGE MY SHOE UNDER THE ACCELERATOR PEDAL AND FORCEFULLY LIFT IT OFF THE FLOORBOARD. THIS IS A LIFE THREATENING EVENT FOR SOME DRIVERS AS THIS VEHICLE HAS VERY FAST ACCELERATION LEAVING LITTLE TIME TO REACT BEFORE THE CAR WOULD BE...