Original footage of the 1983 24 Hours of Le Mans shows the aluminum monocoque Porsche 956 chassis 003 sputtering for the win at the 1983 24 Hours of Le Mans, narrowly crossing the finish line as smoke billows from the driver side exhaust.

This month, racing enthusiasts will have the opportunity to own what is now considered one of Porsche’s most coveted racecars in existence: Gooding & Co. will auction chassis 003 at the Pebble Beach Concours d’Elegance, taking place August 15 and 16. Presale estima…