2018 BMW 430I Unknown Or Other Problems

My vehicle erupted in a fire on 06/29/22. My vehicle had all of its services. It was shooting out random messages. Then ultimately completely lost power. My car filled with smoke and I seen flames coming from underneath the hood. It was fully engulfed in just minutes.

I PULLED IN MY DRIVEWAY AND TURNED OFF THE ENGINE. I USED THE INTERNAL BUTTON TO OPEN THE TRUNK THEN OPENED MY DOOR AND GOT OUT OF THE CAR. THE KEY WAS IN MY PURSE ON MY SHOULDER. I WAS REACHING INTO THE TRUNK TO GATHER MY BELONGINGS, AND THE CAR MADE A STEADY ALARM SOUND I HAD NEVER HEARD BEFORE AND THE TRUNK CLOSED ON MY ARM. I WAS ABLE TO PULL MY ARM OUT WHILE IT WAS PINNED IN THE TRUNK, BUT I HAVE TWO PAINFUL SUBDERMAL HEMATOMAS ON MY RIGHT ARM.

WHILE PARKED, CAR WENT ON WITH GEAR SHIFT FAILURE WITH A NOTE TO TAKE IN FOR SERVICE, NO LIGHTS ON GEAR SHIFT. RESTARTED CAR WITH IT FUNCTIONING AS NORMAL. 2 HOURS LATER, DOORS UNLOCK ON ITS OWN AND ALL WINDOWS, SUNROOF ALSO OPEN ON ITS OWN WHILE IN MOTION. NOT EXACTLY SURE WHAT IS THE DEFECT AS THE CAR SEEMS TO BE OUT OF CONTROL FROM THE DRIVER/PASSENGER.