THE SPARK PLUG CAME OUT OF THE CYLINDER HEAD WHILE DRIVING ALONG A CITY ROAD AT LOWER MILEAGE (20 - 30 MPH). THE SPARK PLUG RIPPED OUT THE THREADS ON THE CYLINDER HEAD, DAMAGED THE COIL PACKAGE, AND CAUSED THE CHECK ENGINE LIGHT TO COME ONE. I SMELLED FUMES IN THE PASSENGER CABIN AND BECAME DIZZY WHILE PULLING OVER TO STOP. SMOKE STARTED COMING FROM UNDER THE HOOD FROM THE COIL PACKAGE BEING MELTED. THE SPARK PLUG WAS LOST WHILE PULLING OVER.