Witnesses detected a burning car in the parking lot next to a discotheque in the early morning hours. After the fire had been extinguished, the charred body of the 23-year-old car owner was found in the driver's seat. The young man had been a guest of the discotheque the previous night and consumed plenty of alcoholic drinks. The traces left by the fire on the car suggested that the fire had started in the passenger compartment. At autopsy, greyish-brown discoloration and induration of the mucosa of the respiratory tract were found in addition to massive aspiration of soot and signs of soot swallowing. The macroscopic and histological findings pointed to a chemical burn of the airways probably caused by chlorine gases developing when the covering of the passenger compartment was burning. Chemical burns due to inhalation, aspiration and swallowing of soot are all signs of vitality, so that a smoldering fire must have gone on for a while inside the car with the windows closed. The most probable cause of the fire is that clothing or textile material in the car was set on fire by a burning cigarette.