ASA

By 1962, Enzo Ferrari decided to entrust production of the Ferrarina to close friend Oronzio de Nora and his son, Niccolò de Nora. The de Nora Electrochemical Group formed a new company for this purpose under the name ASA (Autocostruzioni Società per Azioni). ASA operations were headed by Niccolò de Nora. Also involved in ASA management were race drivers Lorenzo Bandini, Gerino Gerini, and Giancarlo Baghetti and engineer Giotto Bizzarrini. The new firm had its headquarters on via San Faustino in Milan.

The ASA 1000 GT production version, almost unchanged from the "Mille" prototype, was officially introduced at the 1962 Turin Auto Show. Despite this debut, due to production difficulties series production of the 1000 GT did not begin until 1964. The production 1000 GT used the 1032cc Tipo 141 I4 engine fitted with 40DCOE9 carburetors. It produced a stated 91 horsepower (68 kW) at 6800 rpm, a HP/Litre ratio better than the contemporary Ferrari 275 GTB. Other sources report an output of 95.6 horsepower (71.3 kW) at 7000 rpm. Production cars used a tubular spaceframe chassis designed by Giotto Bizzarrini, based on the 250 GTO. It was equipped with double wishbone front suspension and a live axle at the rear. Both front and rear of the car were equipped with coil springs, tubular dampers, an anti-roll bar and disk brakes. The coupe was bodied in steel with aluminum hood and trunk lids and weighed 1,720 pounds (780 kg) dry. Autocar magazine tested the 1000 GT shortly after its introduction and recorded a 0-60 mph time of 14.0 seconds and a 1/4 mile run in 19.3 seconds.

At least two fiberglass-bodied convertibles were also produced. One of the convertibles was displayed at the 1962 Turin auto show alongside the coupe. Other than the fiberglass body, the convertible was mechanically identical to the 1000 GT coupe.