2009 BMW 528I Vehicle Speed Control Problems

I WAS DRIVING THE VEHICLE ON THE HIGHWAY ABOUT 70 MILES PER HOUR - WHEN WITHOUT ANY WARNING THE VEHICLE "CHECK ENGINE LIGHT" AND "HAZARD LIGHTS CAME ON - THE FUEL GAUGE SHOWED OVER 100 MORE GALLOONS IN THE TANK THAN IT HAD PREVIOUSLY - TRIED TO ACCELERATE BUT THE CAR DID NOT RESPOND. THE ENGINE REDUCED POWER AND WAS STALLING AS I IMMEDIATELY STARTED TO CROSS THE HIGHWAY FROM THE FURTHEST LEFT LANE IN ORDER TO GET TO SAFETY ON THE RIGHT SIDE OF THE ROAD - I WAS WITH MY PARENTS AND MY HANDICAPPED NEPHEW AND SCARED FOR ALL OF OUR LIVES. THE ENGINE "SPUTTERED AND VIBRATED" BEFORE STOPPING. I DIDN'T NOTICE ANYTHING WRONG OR ANY CHANGE IN THE WAY THE CAR DROVE. THIS WAS A VERY DANGEROUS AND UNSAFE INCIDENT.