I once worked with a guy who was a few BBQ briquets short of a full bag. He drove a big Pontiac with a trunk as large as the back of a pick up truck. Him and his family had a picnic in the park. When finished he put the grille full of hot coals in his trunk and drove home. By then smoke was coming out the rear and he had to call the fire department. Not sure if he had any weiners left.