In 1956, Abarth had already built up an extensive reputation as a premier tuner of Fiat engines and was branching out into many classes of motor sport. To compete in the 750cc class of the Grand Touring Championship, Abarth commissioned Zagato to rebody the Fiat 600 into a purposeful racecar.Thanks to Zagato’s weight saving body, the first cars weighed 1179 lbs (535 kg) and took advantage of Abarth’s 747cc tuned engine. With a high compression head and specially made exhaust the produced power was 47 bhp @ 6000 rpm. A number of prototype cars were made in 1956 and one of these appeared at the 1956 Mille Miglia and placed second in class.Read more : https://www.supercars.net/blog/1956-fiat-abarth-750-gt-zagato/