The DeltaWing is a racing car designed by British race car designer and engineer Ben Bowlby and debuted at the 2012 24 Hours of Le Mans. The entry was run under the Project 56 name, composed of Ben Bowlby (design), Dan Gurney's All American Racers (constructor), Duncan Dayton's Highcroft Racing and International Motor Sports Association owner Don Panoz. Nissan's NISMO division provided the engine in return for naming rights for part of 2012.

The 80th 24 Hours of Le Mans was a 24-hour automobile endurance race for teams of three drivers each entering Le Mans Prototype and Le Mans Grand Touring Endurance cars held from 16 to 17 June 2012 at the Circuit de la Sarthe close to Le Mans, France before 240,000 spectators. It was the 80th running of the event, as organised by the automotive group, the Automobile Club de l'Ouest (ACO) since 1923. The race was the third round of the 2012 FIA World Endurance Championship, with 30 of the race's 56 entries contesting the championship. A test day was held two weeks prior to the race on 3 June.