SMELLED HOT WIRE SMELL WHILE DRIVING ON HIGHWAY. NOTICED 1 INCH FLAME IN LEFT AIRVENT WHICH GREW TO 5 INCHES WHEN STOPPED CAR. UNHOOKED BATTERY, POURED LIQUID OVER DASHBOARD WHICH WAS ON FIRE, CLOSED DOOR, WAITED FOR FIRETRUCK. I THINK IT STARTED IN HEADLIGHT SWITCH. CAR TOTALED, MOST OF DASH BURNT AWAY.*AK