MY VEHICLE WAS PARKED UNDER MY CAR PORT IMMEDIATELY AFTER RETURNING FROM THE GROCERY STORE. AS I WAS UNLOADING THE CAR I SAW AND SMELLED SMOKE WHICH THEN ERUPTED INTO A FIRE COMING FROM THE ENGINE COMPARTMENT. WE CALLED 911 AND WHEN THE FD ARRIVED THE CAR WAS TOTALLY ENGULFED AS WAS MY BUILDING. SUSPECT FUEL LINE LEAK. INSURANCE COMPANY INVESTIGATING. FD SAYS ACURA MDX WAS CAUSE OF FIRE. DANGEROUS SITUATION AS NO PRIOR INDICATORS FROM VEHICLE, RECALLS, ETC.. PHOTOS AVAILABLE IF NEEDED. IF GONE UNNOTICED, ENTIRE STRUCTURE COULD HAVE BEEN LOST.