ASA (Autocostruzioni Società per Azioni) was an Italian automobile manufacturer active from 1961 to 1969, who is known for manufacturing the ASA 1000 GT. This car was developed by Ferrari engineers in the late 1950s as a less expensive, compact alternative to existing Ferrari GT cars. ASA used inline-four and straight-six engines derived from the "250" 3-litre V12 designed by Gioacchino Colombo. The chassis was developed by Giotto Bizzarrini and was derived from the tubular frame chassis of the 250 GTO. The prototype that would become the ASA 1000 GT was first presented by Carrozzeria Bertone (Geneva 1961) under the name "Mille". Following this debut in late 1961, Enzo Ferrari decided to not sell the new car as a Ferrari and entrusted production to a close friend, Oronzio de Nora. The car was manufactured in Milan by a newly formed company called ASA (owned by the De Nora Electrochemical Group) from 1964 to 1969. The 1000 GT model was officially introduced in 1962, but due to production difficulties series production did not begin until 1964. ASA 1000 GT Design and development by Ferrari The ASA 1000 GT originated in a late 1950s experimental project by Ferrari engineers to create a less expensive, compact alternative to existing Ferrari GT cars. This project was designated "854" by the factory (for 850cc, 4 cylinders), however it was commonly but unofficially named "Ferrarina," meaning "Little Ferrari." The "Ferrarina" engine was derived from a late 1950s experimental inline-4, designated Tipo 122. This was basically a four-cylinder, slice of a Colombo V12 from a Ferrari 212, with a bore and stroke of 65 x 64mm and supplied by two Weber 38DCO carburetors. The Tipo 122 engine produced at 7000 rpm. The Tipo 122 was followed by the more powerful and slightly higher displacement Tipo 125 and 126 engines. The Tipo 126 engine displaced 973 cc and produced at 7000 rpm. These engines were tested in the "Ferrarina" prototype, a 2-door notchback coupe on a Fiat 1100 or 1200 chassis with a Pininfarina body, which was used by Enzo Ferrari as his personal transportation for some time in the late 1950s. The final engine design was completed in 1960 as the Tipo 141, with 1032cc displacement, bore and stroke of 69 mm x 69 mm, a single overhead cam and two Weber 38DCOA carburetors. According to Ferrari's records, this engine produced at 7200 rpm with a 9:1