Porsche 962 and 908/3 drive out of parking garage

What does it sound like to fire up a 1985 Porsche 962's turbocharged flat-six or a 1971 Porsche 908/3's flat-eight inside a parking garage? The Amelia Island Concours d'Elegance afforded us the opportunity to witness such an event. Our ears were impressed. Turn the volume up for this one!