This Abarth has no an official name. Somebody calls it OTC 1300, where C indicates the position of the engine engine. Others call it "Lufthansa" because of the sponsor stickers.
The Abarth 1300OTC was designed by Mario Colucci with a frame tubes and the engine in central position. It was built only one car, the prototype in 1964. The 1289cc engine had a power of 147CV.
The maximum speed was around 250km/h.