The Sud Aviation Super-Caravelle was an early design for a supersonic transport.
Unlike most competing designs which envisioned larger trans-Atlantic aircraft and led to the likes of the Boeing 2707, the Super-Caravelle was a much smaller, shorter range design intended to replace Sud Aviation's earlier and successful Caravelle.
Design work started in 1960 and was announced in 1961 at the Paris Air Show, but was later merged with similar work at the British Aircraft Corporation (originally the Bristol 223) to create the Concorde project in November 1962.
It used Concorde's unique ogive wing planform, and was otherwise similar in shape and layout with the exception of the nose area, which was more conventional and only the outermost section over the radar "drooped" for visibility on takeoff and landing.
[1] The size and range requirements were set to make the Super-Caravelle "perfect" for Air France's European and African routes.