This concept car, which bore the name of the ancient Egyptian god who oversaw the air and the sun, was presented in 1980. It was Bertone who took charge of the design, as in the case of the Bravo four years earlier, in a very critical period for the history of Lamborghini. The engine was derived from the Silhouette's 3-litre twin-cam V8. In Grugliasco, after Gandini left, it was Marc Deschamps who designed the lines of the bodywork. However, the concepts presented on the Athon were too extreme to envisage mass production.